Diff of a Sum as Sum of Diffs Sympy

Question

Hi I am starting with sympy,

I want to write the diff of a sum as the dum os diff in sympy. I need to transform,

sp.Derivative(sp.Sum(f(x,t),(n,0,5)), x)

as

sp.Sum(sp.Derivative(f(x,t),x),(n,0,5))

unevaluated and keeping the Sigma of the summation if possible.

If I make doit() the operation is done but the sum is expanded. Is there a way to keep the Sigma symbol?

Thanks in advance and regards!

question from:https://stackoverflow.com/questions/66061701/diff-of-a-sum-as-sum-of-diffs-sympy

Answer 1

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