I am trying to solve the function below. I've attempted to use a symbolic solver and fsolve. Both are causing me trouble. First time posting, I apologize in advance if I'm missing something in my question.

I am trying to solve the function below. I've attempted to use a symbolic solver and fsolve. Both are causing me trouble. First time posting, I apologize in advance if I'm missing something in my question.

Does anyone have a suggestion on how to solve this? I am solving for y, everything else is a known variable.

cos(y) + ((xi - tdd) / y) * sin(y)) - exp(xi - tii)

I attempted this in python using two ways, both did not work. The first is:

import numpy as np from scipy.optimize import fsolve import sympy as sym from sympy import *def fi(y): return (cos(y) + ((xi - tdd) / y) * sin(y)) - exp(xi - tii)) y=fsolve(fi,0.01)`

With this code I get this error:

AttributeError: 'ImmutableDenseNDimArray' object has no attribute 'could_extract_minus_sign'

I also tried this:

y= symbols('y') init_printing(use_unicode=True) yi=solve(cos(y) + ((xi - tdd) / y) * sin(y)) - exp(xi - tii))

And got this error:

NotImplementedError: multiple generators [y, tan(y/2)] No algorithms are implemented to solve equation y(10000000000000000tan(y/2)/(tan(y/2)(-tan(y/2)2 + 1) - 9849605264665270) - 300789470669454*2 + 1)/(tan(y/2)*2 + 1)

*This is how I solved it in Matlab (i and j because I have x values in a matrix that need to be solve):*

fi= @(y,x) (cos(y) + (((x-tdd)/y)sin (y))) - exp((x - tii)); yi(i)=fzero(@(y) fi(y,xi(i,j)),.01);

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