python - 是否有解决线性方程组的python模块？

Question

我想求解一个包含三个或更多变量的线性方程。 python中有没有好的库可以做到这一点？

Answer 1

是的，非常受欢迎的NumPy包有 a function to do this .他们的例子:

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