Recent content by TheMightyJ

Thanks to both of you :0) much appreciated.

Homework Statement Well, the original question is to solve this ... \sum 1/(a2 + x2) the sum goes from x=-infinity to infinity (i wasnt sure how to show this with the latex??) and the answer i am supposed to show is \pi/a + (2*\pi/a) * (1/(e2*\pi*a - 1) Homework Equations...

no no, j is just the coefficient of x. Thanks.

Obviously. Thank you! really not spotting obvious techniques today. Thanks for the help!

Okay, so there is another question, similar in some ways to the previous one, but i am also having trouble. Mainly I am stuck on where to start! The integral this time is Int ( e-(x-w)2 - j*x dx the limits of integration are again, -infinity to infinity. obviously there is some...

Yep, tried it and it worked, brilliant, thank you!

Will give that a try! thank you very much!

Homework Statement Basically, i have to find the solution to: Int( x2 * exp (-(x-w)^2) , x= -infinity.. infinity) Homework Equations I realize this is connected to Gaussian Integration. So that if i have Int (exp(-x2), x=-infinity ... infinity) the answer is sqrt(Pi) Also, i...