Hello again,
I have one more task for subs. Supose one have a term and a function
like this:
In [1]: fxy = f(x) + f(y)
In [2]: g = Lambda(x, x + x**2)
And now I want to do easily
In [4]: fxy.subs(f, g)
Out[4]: f(x) + f(y)
But I must do the cumbersone way
In [3]: fxy.subs(f(x), g(x)).subs(f(y), g(y))
Out[3]:
2 2
x + y + x + y
Any advice?
By,
Friedrich
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