convergence test for integral

nazmi

New member
Joined
Nov 24, 2009
Messages
10
hey there.. i'm kinda lost here..
i need to do convergence test for the equation below...
\(\displaystyle y(x)=\frac{1}{\sqrt{2\pi}}\frac{1}{a}\sqrt{\frac{\ pi}{a}}\int_{-\infty}^{\infty} e^{-a|x|}f(x-t)dt\)

however.. i've got 2 value of f(x).. e^x^2 and x^5

how am i going to test them?
should i include my f(x) inside the equation above?
like this...
\(\displaystyle y(x)=\int_{-\infty}^{\infty} e^{-a|x|}f(x-t)^{5}dt\)

and..

\(\displaystyle y(x)=\int_{-\infty}^{\infty} e^{-a|x|}f(e^{(x-t)^{2}})dt\)

please guide me..
 
Why are you plugging f(x) into f? The integral will of course depend on f, you've either not explained the problem adequately or you are not subbing into your integral correctly.
 
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