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 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…