微分方程计算

Question

I need to calculate some phrase as below.

d/dx(sin^2(cos(x)) = 2sin(cos(x))*-sin(x)*cos(cos(x))

it is differential equations calculating. each phrase can place in d(phrase)/dx .

is this ability in python and if is not, how can I calculate this kind of phrase?

Thanks.

Answer 1

参见sympy ，一个符号数学库。

Answer 2

As the others have said. Take a look at SymPy. Here is a code snippet to demonstrate the relevant functions.

In [1]: from sympy import *

In [2]: x = Symbol('x')

In [3]: (sin(cos(x))**2).diff(x)
Out[3]: -2⋅sin(x)⋅sin(cos(x))⋅cos(cos(x))