| Author |
Comment/Response |
Enrique Vargas
|
 06/29/00 8:22pm
I have an expresion like this:
a=Sum[Subscript[x, i]^2, {i, 1, n}]
How can I get the derivative of this expresion respect to Subscript[x,j]
I should get
D[a,Subscript[x,j]] = 2*Subscript[x, j]
And I get cero as result
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