Limits Through/Under the Integral Sign

Question:Limits Through/Under the Integral Sign

Posted: Fay 144

December 29 2009

Under what if any conditions is it permissible to take the limit through/under the integral sign? For example the following maple commands

> assume(t > 0)

> limit(int(f(t)*exp(s*t),t = 0..infinity),s = infinity)

seems to imply that this really is a permssible operation.

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