Quick Start: BSON Data Types - Decimal 128

Quick Start: BSON Data Types - Decimal 128

Working with decimal numbers can be a challenge. The Decimal128 BSON data type allows for high precision options when working with numbers.

Think back to when you were first introduced to the concept of decimals in numerical calculations. Doing math problems along the lines of 3.231 / 1.28 caused problems when starting out because 1.28 doesn't go into 3.231 evenly. This causes a long string of numbers to be created to provide a more precise answer. In programming languages, we must choose which number format is correct depending on the amount of precision we need. When one needs high precision when working with BSON data types, the decimal128 is the one to use.

As the name suggests, decimal128 provides 128 bits of decimal representation for storing really big (or really small) numbers when rounding decimals exactly is important. Decimal128 supports 34 decimal digits of precision, or significand along with an exponent range of -6143 to +6144. The significand is not normalized in the decimal128 standard allowing for multiple possible representations: 10 x 10^-1 = 1 x 10^0 = .1 x 10^1 = .01 x 10^2 and so on. Having the ability to store maximum and minimum values in the order of 10^6144 and 10^-6143, respectively, allows for a lot of precision.

Decimal128 Precision DetailsWhy & Where to Use

Sometimes when doing mathematical calculations in a programmatic way, results are unexpected. For example in Node.js:

> 0.1
> 0.2
> 0.1 * 0.2
> 0.1 + 0.1

data analysis

Bootstrap 5 Complete Course with Examples

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Building a simple Applications with Vue 3

Deno Crash Course: Explore Deno and Create a full REST API with Deno

How to Build a Real-time Chat App with Deno and WebSockets

Convert HTML to Markdown Online

HTML entity encoder decoder Online

Exploratory Data Analysis is a significant part of Data Science

Data science is omnipresent to advanced statistical and machine learning methods. For whatever length of time that there is data to analyse, the need to investigate is obvious.

Tableau Data Analysis Tips and Tricks

Tableau Data Analysis Tips and Tricks. Master the one of the most powerful data analytics tool with some handy shortcut and tricks.

Analysis, Price Modeling and Prediction: AirBnB Data for Seattle.

Analysis, Price Modeling and Prediction: AirBnB Data for Seattle. A detailed overview of AirBnB’s Seattle data analysis using Data Engineering & Machine Learning techniques.

What Is Data Analysis?

DISCLAIMER: absolutely subjective point of view, for the official definition check out vocabularies or Wikipedia. And come on, you wouldn’t read an entire article just to get the definition.

Exploratory Data Analysis

Suppose you are looking to book a flight ticket for a trip of yours. Now, you will not go directly to a specific site and book the first ticket that you see.