Is there a python module to solve linear equations?

Question

I want to solve a linear equation with three or more variables. Is there a good library in python to do it?

Answer 1

Yes, the very-popular NumPy package has a function to do this. Their example:

Solve the system of equations 3 * x0 + x1 = 9 and x0 + 2 * x1 = 8:

>>> import numpy as np
>>> a = np.array([[3,1], [1,2]])
>>> b = np.array([9,8])
>>> x = np.linalg.solve(a, b)
>>> x
array([ 2.,  3.]) 

https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.linalg.solve.html