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Easy way to convolve a function 
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#1
Dec210, 06:47 AM

P: 6

Hallo there!
I was wondering wether there is an easy way to convolve a function with itself. For example is ther an easy formula or something that gives directly the result? thanks in advance 


#2
Dec210, 06:52 AM

P: 6

for example, for correlation...
The correlation of a function with itself is called its autocorrelation In this case the correlation theorem becomes the transform pair – This is the WienerKhinchin Theorem Corr(g,g)↔G( f )G*( f ) = G( f )^2 Is there something like that for convolution??? 


#3
Dec210, 03:54 PM

Sci Advisor
P: 6,068

I don't know if it helps any, but take the Fourier transform of the function, square the transform, and take the inverse transform of the result.



#4
Dec310, 05:16 AM

P: 6

Easy way to convolve a function
Oh god! This is so complicated( my function is a squared bessel function)!! I will try it though.thank you so much!



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