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What is KuCoin Exchange | Instructions for Using and Registering?
In this post, you'll learn What is KuCoin Exchange | Instructions for Using and Registering KuCoin Exchange? (update 2022)
There are numerous crypto exchanges today, some are brand new and some old. It can be difficult for a novice investor to choose the right one. One popular exchange that attempts to make it easy for the layman is Kucoin, which is what we detail here. Learn what KuCoin is, the different features, and how to use it.
KuCoin is a centralized cryptocurrency exchange, and according to CoinMarketCap, it has approximately 503 tradable cryptocurrencies. The exchange supports fiat currencies like EUR, CZK, NZD, HUF, CAD, etc., through Simplex, Banxa, and OTC. Currently, it has more than eight million users across 207 countries all over the world.
KuCoin has its own cryptocurrency, KuCoin Shares or KCS, which has been now rebranded to KuCoin Token. The platform provides spot trading, margin trade, contract (futures), pool-X, lending, and trading bot services.
Types of accounts on KuCoin
KuCoin offers five types of accounts.
- Main account: For the storage, withdrawal, and deposit of funds
- Trading account: For spot trades and KCS Pay Fees
- Margin accounts: For margin borrowing and margin trading
- Futures account: For future trading
- Pool X account: For staking and soft staking
KuCoin also offers an over-the-counter trading desk. As per this service, traders can execute larger trades with specific prices. This is done without causing any fluctuation in the price of the crypto.
KuCoin API
KuCoin offers services like quantitative trading strategy, trading strategy, trading fee discount, interest-free loans, sandbox trading competition, and referral bonus to API users.
A goal to make investment easy
KuCoin is the brainchild of Michael Gan and Eric Don. Michael was an extraordinary kid who began coding at the age of eight. He founded his first start-up at the age of 16. Having heard about bitcoin in 2012 from his boss Eric, he tried to sell some on Mt. Gox. That’s when he understood that the largest platform at the time was difficult for beginners to use. This made Michael and Eric realize the need for a system that supports every layman, and the result was KuCoin.
What is the Kucoin leveraged token?
Leverage tokens are a new type of derivatives launched by KuCoin. These are tradable assets in the KuCoin spot market. They leverage the profits and aim to provide a multiple of profit of the asset by trading leveraged token shares. These tokens are named using the currency type, multiple of the profit, and long or short direction.
Leveraged tokens don’t have an expiry date or due date. Neither do they have a negative value. The risk of liquidation is absent irrespective of the change in the price of the token. It works under the management of the fund manager.
If you are trading in KuCoin leveraged tokens, then you don’t have to pay a margin or borrow funds to try margin trading. Users holding at least six KCS receive a 50% bonus, which comes from KuCoin’s daily trading fee revenue.
1. The advantages of KuCoin
KuCoin is one of the top 10 cryptocurrency exchange platforms by volume, according to CoinMarketCap. This does not come as a surprise, given all the benefits. It is reasonably expected to retain the position for the long run.
1. Offers lower fees
The maker/taker fee on KuCoin starts at 0.1%, and it will be reduced as levels increase. You can also avail of a further 20% discount if you pay with KCS. The withdrawal fee is also set to one of the lowest in the crypto industry.
2. Strong user base
A strong user base means high liquidity. At the time of writing this article, KuCoin has more than eight million customers. This means that there’s high liquidity. KuCoin claims that every one in four crypto holders across the world uses its service.
3. A wide range of cryptocurrencies
The platform provides for more than 750 trading pairs and more than 380 currencies. You can also choose which pair you want, like BTC, MXR, DAG, EOS, LTC. You can also get tokens like OMG, KCS, DADI, etc.
4. Availability of trading bots
KuCoin provides trading bots that suit people who are new to trading or just don’t have time to set aside for it. The bot will do the trading as per the set parameters. You need not keep tabs on the market or worry about unforeseen market fluctuations. This is the primary feature that attracts users toward KuCoin.
5. Advanced level of charting
The advanced level of charting on KuCoin helps you understand trading strategies better. The app provides analytical charts on everything the trader needs to know.
6. Efficient customer support
The customer support provided by KuCoin is notable. It provides 24×7 live chat services. It is fast and efficient. You can also use the facility to raise a ticket or reach out to support executives via email.
7. Demo trading account
In order to make users comfortable, KuCoin also provides a demo trading account. This demo trading account helps beginners to acquire in-depth knowledge about the trading strategies.
2. The disadvantages of KuCoin
Every system has its drawbacks. Investors have to be cautious about these while using the platform.
1. Limited payment methods
The payment modes offered by KuCoin are limited. Currently, the platform only supports Google Pay, credit cards, and debit cards.
2. Limited educational resources
Being a relatively novel industry, the crypto industry has a steep learning curve. Unless you provide adequate resources to help users onboard the platform, the platform will remain to a few users. In KuCoin’s case, there are limited educational resources. Although there is a blog, it acts more like a promo medium than an informative resource.
3. Not supported in some countries
The KuCoin exchange is not supported in countries like China, Comoros, Seychelles, Syria, Thailand, and the United States.
3. How to Register on KuCoin
You can register on KuCoin by using your email address or phone number. As soon as you enter your email, a code will be sent. Once you enter that verification code, you have to set a password. Read the terms and conditions, agree to it, and select sign up.
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If you use your phone number to sign up, the code will be sent to the phone number. Follow the above process after entering the verification code. You can use an email address only once. In case your country code is not in the dropdown menu, then use your email for registration. If you get verified via KYC, you will have additional benefits.
Once you are done with registering, then go to www.KuCoin.com, enter your email or phone number, and also the password.
Another way to log in to the platform is by scanning the QR code. To enforce security to your account, enable two-factor authentication.
4. How to Buy Crypto on KuCoin
The first step is to fund your account. Then select the ‘Market’ option at the top of the screen.
Next, search for the coin you want. KuCoin will list the coins which you can trade.
Select the trading pair which matches with the coin which you intend to buy. You will then be taken to the main trading screen. Select Market, if you want to buy the crypto at the market price. Then enter the number of coins you want to buy, and click the “Best Market Price button.” Complete the purchase by clicking on the green “Buy” button.
Users can even set a six-digit trading password. You have to input this trading password for withdrawals, transactions, and also for API creation. Remember that this is different from two-factor authentication. To enable this, go to the settings page and choose a trading password on the KuCoin app. You can even buy crypto using credit cards.
5. Buy Crypto using a credit/ debit card
If you want to buy crypto using a credit or debit card, go to the KuCoin home page and click on the “Buy Crypto” option at the top of the page. Select the “Third-party” option.
You will be taken to a payment form. Here, you can choose the currency which you want to buy. Then enter the amount you want to spend and select the crypto you want to buy.
Select the payment method from visa card/ MasterCard or Apple Pay. You will get a list of payment channels. Select the payment channel from the list and then read the disclaimer box and agree to it. Then hit the confirm button. Then you will have to enter the card details and then pay.
6. How to Trade on KuCoin
On the top left of the page, you will find the ‘Market’ button. Click on that, and you will be taken to the market page. Here you can see all the trading pairs. Click on the coin which you want to, and then you can see all the trading pairs with your selected coin.
Nearby some currency pairs, you can see 10X. This means that you can trade this currency pair with 10X leverage.
You can select some currency pairs as favorites, which gives you easy access to that currency pair. You can also search for some specific currency pairs by using the currency option.
The little clock icon on the top right of the page allows you to set price alerts or volatility alerts.
Then transfer the currency to the trading account. For that, just click on the transfer option and select the type of currency which you want to trade and also the amount you want to transfer. Then click confirm.
Before trading, you need to enter your trading password, and then you don’t have to re-enter it for the next two hours.
Select the type of your order and details of your order. KuCoin offers four types of orders:
- Limit order
- Market order
- Stop limit order
- Stop market order
7. Use KuCoin trading bot for easy gains
A trading bot is a way to make profits without observing the market. Almost every exchange platform provides this service, but with the help of a third party. KuCoin has a built-in trading bot that is entirely free of charge. The users can directly start to use it if they have the amount to invest in.
KuCoin trading bots work on the basis of four strategies:
- Spot grid
- Futures grid
- Smart rebalancing
- Dollar-cost averaging
8. How to use KuCoin trading bots
You have different methods to use a trading bot.
Method 1: Log in to the KuCoin app and select a trading bot.
Method 2: Open the KuCoin app, select trade, and then the trading bot.
KuCoin’s official documentation on trading bots will help you use this feature.
9. KuCoin lending for passive income
KuCoin allows you to lend cryptocurrencies to other users with interest rates. This is a peer-to-peer lending process.
The lender has to fill in the details regarding the amount which he is ready to lend and also the daily interest rate (the interest rate is from 0 to 0.2%). The lender can also decide the duration of the term for lending. It can be 7 days, 14 days, or 28 days. The default lending term is 28 days. Both risks and rewards are high in the KuCoin lending service.
KuCoin even provides for an auto-lending option. Here, you can reserve the amount which you don’t want to lend. This is kept as a reserve amount. To do this, just enable the automatic lending option. The lender can set the lowest daily interest rate. The system will lend your fund automatically to other users.
10. Staking on KuCoin
Staking is also an excellent way to make some passive income on Kucoin, which even has a separate platform called Pool X dedicated to that.
Click on the ‘Finance’ button on the top of the page and then select the earn option below that. It will take you to the Pool X platform.
Scroll down and click on the ‘More’ option near to the staking head. The website will provide you with a list of all the coins that you can stake. There are two different ways to stake on KuCoin. One is the flexible term and the other is the fixed terms.
Flexible terms mean you will get a lesser yield, but you will be able to withdraw your cryptocurrency at any time from your pool x account. A list of all the cryptocurrencies available for flexible term staking will be provided. Select the currency you want to stake, and they will show you the annual yield for just keeping your currency in the Pool X account.
Click on the transfer button on the right side and then transfer your currency from your main account to your Pool X account. Enter the amount you want to transfer, or click on max if you want to transfer all of it. Click confirm.
The income which you generate here will be a little lower than the income you would generate for it if you stake it for a fixed period.
While staking for a fixed period, you will lose liquidity. You cannot move the currency from Pool X to the main account before the redemption period is over. If you transfer the currency before completion of the redemption period, then you will lose your interest.
11. KuCoin pool
KuCoin pool is a mining pool that supports proof-of-work assets. It provides only a 2% mining fee. The exchange even has an optimized algorithm to ensure high mining efficiency.
After logging in to the KuCoin account, log in to the KuCoin pool. Create a miner account and complete your miner configuration in the general settings. The platform uses a revenue model that includes FPPS based settlement mode for BTC mining and FPPS based settlement mode for BCH mining.
12. KuCoin has features worth looking at
Although KuCoin is all highlighted with its advantages and what makes it better, any trader needs to know about the drawbacks too before investing. Make sure that you don’t miss the risky elements. It is still in its primary stage. Investing in something new comes with risks as well. The unique features of the exchange may make you blind, but be sure to do your research before investing.
13. Frequently asked questions
Is KuCoin a safe exchange?
KuCoin is safeguarded with two-factor authentication, trading password, and industry-level multi-layer encryption. They also have an internal risk control department, which makes your funds safe and secure. However, being a centralized exchange, it is still vulnerable to hacking and theft.
Is KuCoin legal in the U.S.?
The exchange does not provide services for countries not listed on the KuCoin website. It does not include the U.S.
Where is the KuCoin exchange located?
KuCoin exchange is based in Seychelles.
Is KuCoin a wallet or an exchange?
KuCoin is an exchange that also features a wallet. The platform combines two different services and provides them together. Although it brands itself as an exchange, it also provides storage services.
Can I trust KuCoin?
KuCoin has proven itself to be a legitimate service over the years. There’s no reason so far to doubt the exchange’s honesty.
What is KuCoin used for?
KuCoin is a global cryptocurrency exchange platform that lets users buy, sell, store, and lend their cryptocurrencies.
Can U.S. citizens use KuCoin?
KuCoin is not legal in the United States. But U.S. citizens can still use KuCoin by registering via email ID. This comes without KYC registration. So, you may not get the same services as others. Moreover, as it is not legally licensed, and considering the strict regulations for cryptocurrency, you must be cautious while using KuCoin.
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Originally published on: beincrypto.com
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Pdf2gerb: Perl Script Converts PDF Files to Gerber format
pdf2gerb
Perl script converts PDF files to Gerber format
Pdf2Gerb generates Gerber 274X photoplotting and Excellon drill files from PDFs of a PCB. Up to three PDFs are used: the top copper layer, the bottom copper layer (for 2-sided PCBs), and an optional silk screen layer. The PDFs can be created directly from any PDF drawing software, or a PDF print driver can be used to capture the Print output if the drawing software does not directly support output to PDF.
The general workflow is as follows:
- Design the PCB using your favorite CAD or drawing software.
- Print the top and bottom copper and top silk screen layers to a PDF file.
- Run Pdf2Gerb on the PDFs to create Gerber and Excellon files.
- Use a Gerber viewer to double-check the output against the original PCB design.
- Make adjustments as needed.
- Submit the files to a PCB manufacturer.
Please note that Pdf2Gerb does NOT perform DRC (Design Rule Checks), as these will vary according to individual PCB manufacturer conventions and capabilities. Also note that Pdf2Gerb is not perfect, so the output files must always be checked before submitting them. As of version 1.6, Pdf2Gerb supports most PCB elements, such as round and square pads, round holes, traces, SMD pads, ground planes, no-fill areas, and panelization. However, because it interprets the graphical output of a Print function, there are limitations in what it can recognize (or there may be bugs).
See docs/Pdf2Gerb.pdf for install/setup, config, usage, and other info.
pdf2gerb_cfg.pm
#Pdf2Gerb config settings:
#Put this file in same folder/directory as pdf2gerb.pl itself (global settings),
#or copy to another folder/directory with PDFs if you want PCB-specific settings.
#There is only one user of this file, so we don't need a custom package or namespace.
#NOTE: all constants defined in here will be added to main namespace.
#package pdf2gerb_cfg;
use strict; #trap undef vars (easier debug)
use warnings; #other useful info (easier debug)
##############################################################################################
#configurable settings:
#change values here instead of in main pfg2gerb.pl file
use constant WANT_COLORS => ($^O !~ m/Win/); #ANSI colors no worky on Windows? this must be set < first DebugPrint() call
#just a little warning; set realistic expectations:
#DebugPrint("${\(CYAN)}Pdf2Gerb.pl ${\(VERSION)}, $^O O/S\n${\(YELLOW)}${\(BOLD)}${\(ITALIC)}This is EXPERIMENTAL software. \nGerber files MAY CONTAIN ERRORS. Please CHECK them before fabrication!${\(RESET)}", 0); #if WANT_DEBUG
use constant METRIC => FALSE; #set to TRUE for metric units (only affect final numbers in output files, not internal arithmetic)
use constant APERTURE_LIMIT => 0; #34; #max #apertures to use; generate warnings if too many apertures are used (0 to not check)
use constant DRILL_FMT => '2.4'; #'2.3'; #'2.4' is the default for PCB fab; change to '2.3' for CNC
use constant WANT_DEBUG => 0; #10; #level of debug wanted; higher == more, lower == less, 0 == none
use constant GERBER_DEBUG => 0; #level of debug to include in Gerber file; DON'T USE FOR FABRICATION
use constant WANT_STREAMS => FALSE; #TRUE; #save decompressed streams to files (for debug)
use constant WANT_ALLINPUT => FALSE; #TRUE; #save entire input stream (for debug ONLY)
#DebugPrint(sprintf("${\(CYAN)}DEBUG: stdout %d, gerber %d, want streams? %d, all input? %d, O/S: $^O, Perl: $]${\(RESET)}\n", WANT_DEBUG, GERBER_DEBUG, WANT_STREAMS, WANT_ALLINPUT), 1);
#DebugPrint(sprintf("max int = %d, min int = %d\n", MAXINT, MININT), 1);
#define standard trace and pad sizes to reduce scaling or PDF rendering errors:
#This avoids weird aperture settings and replaces them with more standardized values.
#(I'm not sure how photoplotters handle strange sizes).
#Fewer choices here gives more accurate mapping in the final Gerber files.
#units are in inches
use constant TOOL_SIZES => #add more as desired
(
#round or square pads (> 0) and drills (< 0):
.010, -.001, #tiny pads for SMD; dummy drill size (too small for practical use, but needed so StandardTool will use this entry)
.031, -.014, #used for vias
.041, -.020, #smallest non-filled plated hole
.051, -.025,
.056, -.029, #useful for IC pins
.070, -.033,
.075, -.040, #heavier leads
# .090, -.043, #NOTE: 600 dpi is not high enough resolution to reliably distinguish between .043" and .046", so choose 1 of the 2 here
.100, -.046,
.115, -.052,
.130, -.061,
.140, -.067,
.150, -.079,
.175, -.088,
.190, -.093,
.200, -.100,
.220, -.110,
.160, -.125, #useful for mounting holes
#some additional pad sizes without holes (repeat a previous hole size if you just want the pad size):
.090, -.040, #want a .090 pad option, but use dummy hole size
.065, -.040, #.065 x .065 rect pad
.035, -.040, #.035 x .065 rect pad
#traces:
.001, #too thin for real traces; use only for board outlines
.006, #minimum real trace width; mainly used for text
.008, #mainly used for mid-sized text, not traces
.010, #minimum recommended trace width for low-current signals
.012,
.015, #moderate low-voltage current
.020, #heavier trace for power, ground (even if a lighter one is adequate)
.025,
.030, #heavy-current traces; be careful with these ones!
.040,
.050,
.060,
.080,
.100,
.120,
);
#Areas larger than the values below will be filled with parallel lines:
#This cuts down on the number of aperture sizes used.
#Set to 0 to always use an aperture or drill, regardless of size.
use constant { MAX_APERTURE => max((TOOL_SIZES)) + .004, MAX_DRILL => -min((TOOL_SIZES)) + .004 }; #max aperture and drill sizes (plus a little tolerance)
#DebugPrint(sprintf("using %d standard tool sizes: %s, max aper %.3f, max drill %.3f\n", scalar((TOOL_SIZES)), join(", ", (TOOL_SIZES)), MAX_APERTURE, MAX_DRILL), 1);
#NOTE: Compare the PDF to the original CAD file to check the accuracy of the PDF rendering and parsing!
#for example, the CAD software I used generated the following circles for holes:
#CAD hole size: parsed PDF diameter: error:
# .014 .016 +.002
# .020 .02267 +.00267
# .025 .026 +.001
# .029 .03167 +.00267
# .033 .036 +.003
# .040 .04267 +.00267
#This was usually ~ .002" - .003" too big compared to the hole as displayed in the CAD software.
#To compensate for PDF rendering errors (either during CAD Print function or PDF parsing logic), adjust the values below as needed.
#units are pixels; for example, a value of 2.4 at 600 dpi = .0004 inch, 2 at 600 dpi = .0033"
use constant
{
HOLE_ADJUST => -0.004 * 600, #-2.6, #holes seemed to be slightly oversized (by .002" - .004"), so shrink them a little
RNDPAD_ADJUST => -0.003 * 600, #-2, #-2.4, #round pads seemed to be slightly oversized, so shrink them a little
SQRPAD_ADJUST => +0.001 * 600, #+.5, #square pads are sometimes too small by .00067, so bump them up a little
RECTPAD_ADJUST => 0, #(pixels) rectangular pads seem to be okay? (not tested much)
TRACE_ADJUST => 0, #(pixels) traces seemed to be okay?
REDUCE_TOLERANCE => .001, #(inches) allow this much variation when reducing circles and rects
};
#Also, my CAD's Print function or the PDF print driver I used was a little off for circles, so define some additional adjustment values here:
#Values are added to X/Y coordinates; units are pixels; for example, a value of 1 at 600 dpi would be ~= .002 inch
use constant
{
CIRCLE_ADJUST_MINX => 0,
CIRCLE_ADJUST_MINY => -0.001 * 600, #-1, #circles were a little too high, so nudge them a little lower
CIRCLE_ADJUST_MAXX => +0.001 * 600, #+1, #circles were a little too far to the left, so nudge them a little to the right
CIRCLE_ADJUST_MAXY => 0,
SUBST_CIRCLE_CLIPRECT => FALSE, #generate circle and substitute for clip rects (to compensate for the way some CAD software draws circles)
WANT_CLIPRECT => TRUE, #FALSE, #AI doesn't need clip rect at all? should be on normally?
RECT_COMPLETION => FALSE, #TRUE, #fill in 4th side of rect when 3 sides found
};
#allow .012 clearance around pads for solder mask:
#This value effectively adjusts pad sizes in the TOOL_SIZES list above (only for solder mask layers).
use constant SOLDER_MARGIN => +.012; #units are inches
#line join/cap styles:
use constant
{
CAP_NONE => 0, #butt (none); line is exact length
CAP_ROUND => 1, #round cap/join; line overhangs by a semi-circle at either end
CAP_SQUARE => 2, #square cap/join; line overhangs by a half square on either end
CAP_OVERRIDE => FALSE, #cap style overrides drawing logic
};
#number of elements in each shape type:
use constant
{
RECT_SHAPELEN => 6, #x0, y0, x1, y1, count, "rect" (start, end corners)
LINE_SHAPELEN => 6, #x0, y0, x1, y1, count, "line" (line seg)
CURVE_SHAPELEN => 10, #xstart, ystart, x0, y0, x1, y1, xend, yend, count, "curve" (bezier 2 points)
CIRCLE_SHAPELEN => 5, #x, y, 5, count, "circle" (center + radius)
};
#const my %SHAPELEN =
#Readonly my %SHAPELEN =>
our %SHAPELEN =
(
rect => RECT_SHAPELEN,
line => LINE_SHAPELEN,
curve => CURVE_SHAPELEN,
circle => CIRCLE_SHAPELEN,
);
#panelization:
#This will repeat the entire body the number of times indicated along the X or Y axes (files grow accordingly).
#Display elements that overhang PCB boundary can be squashed or left as-is (typically text or other silk screen markings).
#Set "overhangs" TRUE to allow overhangs, FALSE to truncate them.
#xpad and ypad allow margins to be added around outer edge of panelized PCB.
use constant PANELIZE => {'x' => 1, 'y' => 1, 'xpad' => 0, 'ypad' => 0, 'overhangs' => TRUE}; #number of times to repeat in X and Y directions
# Set this to 1 if you need TurboCAD support.
#$turboCAD = FALSE; #is this still needed as an option?
#CIRCAD pad generation uses an appropriate aperture, then moves it (stroke) "a little" - we use this to find pads and distinguish them from PCB holes.
use constant PAD_STROKE => 0.3; #0.0005 * 600; #units are pixels
#convert very short traces to pads or holes:
use constant TRACE_MINLEN => .001; #units are inches
#use constant ALWAYS_XY => TRUE; #FALSE; #force XY even if X or Y doesn't change; NOTE: needs to be TRUE for all pads to show in FlatCAM and ViewPlot
use constant REMOVE_POLARITY => FALSE; #TRUE; #set to remove subtractive (negative) polarity; NOTE: must be FALSE for ground planes
#PDF uses "points", each point = 1/72 inch
#combined with a PDF scale factor of .12, this gives 600 dpi resolution (1/72 * .12 = 600 dpi)
use constant INCHES_PER_POINT => 1/72; #0.0138888889; #multiply point-size by this to get inches
# The precision used when computing a bezier curve. Higher numbers are more precise but slower (and generate larger files).
#$bezierPrecision = 100;
use constant BEZIER_PRECISION => 36; #100; #use const; reduced for faster rendering (mainly used for silk screen and thermal pads)
# Ground planes and silk screen or larger copper rectangles or circles are filled line-by-line using this resolution.
use constant FILL_WIDTH => .01; #fill at most 0.01 inch at a time
# The max number of characters to read into memory
use constant MAX_BYTES => 10 * M; #bumped up to 10 MB, use const
use constant DUP_DRILL1 => TRUE; #FALSE; #kludge: ViewPlot doesn't load drill files that are too small so duplicate first tool
my $runtime = time(); #Time::HiRes::gettimeofday(); #measure my execution time
print STDERR "Loaded config settings from '${\(__FILE__)}'.\n";
1; #last value must be truthful to indicate successful load
#############################################################################################
#junk/experiment:
#use Package::Constants;
#use Exporter qw(import); #https://perldoc.perl.org/Exporter.html
#my $caller = "pdf2gerb::";
#sub cfg
#{
# my $proto = shift;
# my $class = ref($proto) || $proto;
# my $settings =
# {
# $WANT_DEBUG => 990, #10; #level of debug wanted; higher == more, lower == less, 0 == none
# };
# bless($settings, $class);
# return $settings;
#}
#use constant HELLO => "hi there2"; #"main::HELLO" => "hi there";
#use constant GOODBYE => 14; #"main::GOODBYE" => 12;
#print STDERR "read cfg file\n";
#our @EXPORT_OK = Package::Constants->list(__PACKAGE__); #https://www.perlmonks.org/?node_id=1072691; NOTE: "_OK" skips short/common names
#print STDERR scalar(@EXPORT_OK) . " consts exported:\n";
#foreach(@EXPORT_OK) { print STDERR "$_\n"; }
#my $val = main::thing("xyz");
#print STDERR "caller gave me $val\n";
#foreach my $arg (@ARGV) { print STDERR "arg $arg\n"; }Download Details:
Author: swannman
Source Code: https://github.com/swannman/pdf2gerb
License: GPL-3.0 license
1622015491
Bitcoin Exchange script | Cryptocurrency Exchange Script | Free Live Demo @ Coinsclone
Hey peeps, Hope you all are safe & going well
Many entrepreneurs & startups are interested to start a crypto exchange platform by using a cryptocurrency exchange script, you know why??? Let me explain. Before that, you need to know what is a cryptocurrency exchange script???
What is Cryptocurrency Exchange Script???
Cryptocurrency Exchange Script is an upgrade version of all exchange platforms, it is also called ready-made script or software. By using the crypto exchange script you can launch your crypto trading platform instantly. It is one of the easiest and fastest ways to start your crypto exchange business. Also, it helps to launch your exchange platform within 7 days.
Benefits of Bitcoin Exchange Script:
- Customizing options - They will help you to build your cryptocurrency exchange platform based on your business needs.
- Monitor and Engage - You can easily monitor the work process
- Beta module - You can test your exchange in the Beta module
- Cost-effective - The development will be around $8k - $15k (It may be vary based on the requirement)
- Time-Period - You can launch your exchange within 1 week
Best Trading & Security Features of Bitcoin Exchange Script:
- Multi-language
- IEO launchpad,
- Crypto wallet,
- Instant buying/selling cryptocurrencies
- Staking and lending
- Live trading charts with margin trading API and futures 125x trading
- Stop limit order and stop-loss orders
- Limit maker orders
- Multi-cryptocurrencies Support
- Referral options
- Admin panel
- Perpetual swaps
- Advanced UI/UX
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Why Use WordPress? What Can You Do With WordPress?
Can you use WordPress for anything other than blogging? To your surprise, yes. WordPress is more than just a blogging tool, and it has helped thousands of websites and web applications to thrive. The use of WordPress powers around 40% of online projects, and today in our blog, we would visit some amazing uses of WordPress other than blogging.
What Is The Use Of WordPress?
WordPress is the most popular website platform in the world. It is the first choice of businesses that want to set a feature-rich and dynamic Content Management System. So, if you ask what WordPress is used for, the answer is – everything. It is a super-flexible, feature-rich and secure platform that offers everything to build unique websites and applications. Let’s start knowing them:
1. Multiple Websites Under A Single Installation
WordPress Multisite allows you to develop multiple sites from a single WordPress installation. You can download WordPress and start building websites you want to launch under a single server. Literally speaking, you can handle hundreds of sites from one single dashboard, which now needs applause.
It is a highly efficient platform that allows you to easily run several websites under the same login credentials. One of the best things about WordPress is the themes it has to offer. You can simply download them and plugin for various sites and save space on sites without losing their speed.
2. WordPress Social Network
WordPress can be used for high-end projects such as Social Media Network. If you don’t have the money and patience to hire a coder and invest months in building a feature-rich social media site, go for WordPress. It is one of the most amazing uses of WordPress. Its stunning CMS is unbeatable. And you can build sites as good as Facebook or Reddit etc. It can just make the process a lot easier.
To set up a social media network, you would have to download a WordPress Plugin called BuddyPress. It would allow you to connect a community page with ease and would provide all the necessary features of a community or social media. It has direct messaging, activity stream, user groups, extended profiles, and so much more. You just have to download and configure it.
If BuddyPress doesn’t meet all your needs, don’t give up on your dreams. You can try out WP Symposium or PeepSo. There are also several themes you can use to build a social network.
3. Create A Forum For Your Brand’s Community
Communities are very important for your business. They help you stay in constant connection with your users and consumers. And allow you to turn them into a loyal customer base. Meanwhile, there are many good technologies that can be used for building a community page – the good old WordPress is still the best.
It is the best community development technology. If you want to build your online community, you need to consider all the amazing features you get with WordPress. Plugins such as BB Press is an open-source, template-driven PHP/ MySQL forum software. It is very simple and doesn’t hamper the experience of the website.
Other tools such as wpFoRo and Asgaros Forum are equally good for creating a community blog. They are lightweight tools that are easy to manage and integrate with your WordPress site easily. However, there is only one tiny problem; you need to have some technical knowledge to build a WordPress Community blog page.
4. Shortcodes
Since we gave you a problem in the previous section, we would also give you a perfect solution for it. You might not know to code, but you have shortcodes. Shortcodes help you execute functions without having to code. It is an easy way to build an amazing website, add new features, customize plugins easily. They are short lines of code, and rather than memorizing multiple lines; you can have zero technical knowledge and start building a feature-rich website or application.
There are also plugins like Shortcoder, Shortcodes Ultimate, and the Basics available on WordPress that can be used, and you would not even have to remember the shortcodes.
5. Build Online Stores
If you still think about why to use WordPress, use it to build an online store. You can start selling your goods online and start selling. It is an affordable technology that helps you build a feature-rich eCommerce store with WordPress.
WooCommerce is an extension of WordPress and is one of the most used eCommerce solutions. WooCommerce holds a 28% share of the global market and is one of the best ways to set up an online store. It allows you to build user-friendly and professional online stores and has thousands of free and paid extensions. Moreover as an open-source platform, and you don’t have to pay for the license.
Apart from WooCommerce, there are Easy Digital Downloads, iThemes Exchange, Shopify eCommerce plugin, and so much more available.
6. Security Features
WordPress takes security very seriously. It offers tons of external solutions that help you in safeguarding your WordPress site. While there is no way to ensure 100% security, it provides regular updates with security patches and provides several plugins to help with backups, two-factor authorization, and more.
By choosing hosting providers like WP Engine, you can improve the security of the website. It helps in threat detection, manage patching and updates, and internal security audits for the customers, and so much more.
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Using Singular Value Separation in Python and Numpy (linalg.svd)
In this pythonn - Numpy tutorial we will learn about Numpy linalg.svd: Singular Value Decomposition in Python. In mathematics, a singular value decomposition (SVD) of a matrix refers to the factorization of a matrix into three separate matrices. It is a more generalized version of an eigenvalue decomposition of matrices. It is further related to the polar decompositions.
In Python, it is easy to calculate the singular decomposition of a complex or a real matrix using the numerical python or the numpy library. The numpy library consists of various linear algebraic functions including one for calculating the singular value decomposition of a matrix.
In machine learning models, singular value decomposition is widely used to train models and in neural networks. It helps in improving accuracy and in reducing the noise in data. Singular value decomposition transforms one vector into another without them necessarily having the same dimension. Hence, it makes matrix manipulation in vector spaces easier and efficient. It is also used in regression analysis.
Syntax of Numpy linalg.svd() function
The function that calculates the singular value decomposition of a matrix in python belongs to the numpy module, named linalg.svd() .
The syntax of the numpy linalg.svd () is as follows:
numpy.linalg.svd(A, full_matrices=True, compute_uv=True, hermitian=False)
You can customize the true and false boolean values based on your requirements.
The parameters of the function are given below:
- A->array_like: This is the required matrix whose singular value decomposition is being calculated. It can be real or complex as required. It’s dimension should be >= 2.
- full_matrices->boolean value(optional): If set to true, then the Hermitian transpose of the given matrix is a square, if it’s false then it isn’t.
- compute_uv->boolen value(optional): It determines whether the Hermitian transpose is to be calculated or not in addition to the singular value decomposition.
- hermitian->boolean value(optional): The given matrix is considered hermitian(that is symmetric, with real values) which might provide a more efficient method for computation.
The function returns three types of matrices based on the parameters mentioned above:
- S->array_like: The vector containing the singular values in the descending order with dimensions same as the original matrix.
- u->array_like: This is an optional solution that is returned when compute_uv is set to True. It is a set of vectors with singular values.
- v-> array_like: Set of unitary arrays only returned when compute_uv is set to True.
It raises a LinALgError when the singular values diverse.
Prerequisites for setup
Before we dive into the examples, make sure you have the numpy module installed in your local system. This is required for using linear algebraic functions like the one discussed in this article. Run the following command in your terminal.
pip install numpyThat’s all you need right now, let’s look at how we will implement the code in the next section.
To calculate Singular Value Decomposition (SVD) in Python, use the NumPy library’s linalg.svd() function. Its syntax is numpy.linalg.svd(A, full_matrices=True, compute_uv=True, hermitian=False), where A is the matrix for which SVD is being calculated. It returns three matrices: S, U, and V.
Example 1: Calculating the Singular Value Decomposition of a 3×3 Matrix
In this first example we will take a 3X3 matrix and compute its singular value decomposition in the following way:
#importing the numpy module
import numpy as np
#using the numpy.array() function to create an array
A=np.array([[2,4,6],
[8,10,12],
[14,16,18]])
#calculatin all three matrices for the output
#using the numpy linalg.svd function
u,s,v=np.linalg.svd(A, compute_uv=True)
#displaying the result
print("the output is=")
print('s(the singular value) = ',s)
print('u = ',u)
print('v = ',v)The output will be:
the output is=
s(the singular value) = [3.36962067e+01 2.13673903e+00 8.83684950e-16]
u = [[-0.21483724 0.88723069 0.40824829]
[-0.52058739 0.24964395 -0.81649658]
[-0.82633754 -0.38794278 0.40824829]]
v = [[-0.47967118 -0.57236779 -0.66506441]
[-0.77669099 -0.07568647 0.62531805]
[-0.40824829 0.81649658 -0.40824829]]
Example 1
Example 2: Calculating the Singular Value Decomposition of a Random Matrix
In this example, we will be using the numpy.random.randint() function to create a random matrix. Let’s get into it!
#importing the numpy module
import numpy as np
#using the numpy.array() function to craete an array
A=np.random.randint(5, 200, size=(3,3))
#display the created matrix
print("The input matrix is=",A)
#calculatin all three matrices for the output
#using the numpy linalg.svd function
u,s,v=np.linalg.svd(A, compute_uv=True)
#displaying the result
print("the output is=")
print('s(the singular value) = ',s)
print('u = ',u)
print('v = ',v)The output will be as follows:
The input matrix is= [[ 36 74 101]
[104 129 185]
[139 121 112]]
the output is=
s(the singular value) = [348.32979681 61.03199722 10.12165841]
u = [[-0.3635535 -0.48363012 -0.79619769]
[-0.70916514 -0.41054007 0.57318554]
[-0.60408084 0.77301925 -0.19372034]]
v = [[-0.49036384 -0.54970618 -0.67628871]
[ 0.77570499 0.0784348 -0.62620264]
[ 0.39727203 -0.83166766 0.38794824]]
Example 2
Suggested: Numpy linalg.eigvalsh: A Guide to Eigenvalue Computation.
Wrapping Up
In this article, we explored the concept of singular value decomposition in mathematics and how to calculate it using Python’s numpy module. We used the linalg.svd() function to compute the singular value decomposition of both given and random matrices. Numpy provides an efficient and easy-to-use method for performing linear algebra operations, making it highly valuable in machine learning, neural networks, and regression analysis. Keep exploring other linear algebraic functions in numpy to enhance your mathematical toolset in Python.
Article source at: https://www.askpython.com