it is simple but i have some suspession about it(adsbygoogle = window.adsbygoogle || []).push({});

when the integral and derivative of some func can commute ?

for ex. is it possible to say

[tex]

\frac{{\partial ^{} }}{{\partial y^{} }}\int_a^b {f(x,y)dx} = \int_a^b {\frac{{\partial ^{} }}{{\partial y^{} }}f(x,y)dx}

[/tex]

or are there any condition for f(x,y) to satisfy?(?any toplogical condition other than f integrable)

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Derivative vs integral

**Physics Forums | Science Articles, Homework Help, Discussion**