Integrating the Gaussian Integral: Is it as Easy as It Seems?

[Zurtex]

Nevermind sorry, think I've found a sufficent article on wikipedia to help me:

http://en.wikipedia.org/wiki/Gaussian_integral

 

[Gib Z]

From memory the Gaussian integral is from infinity to negative infinity..if you want something that act's as an anti derivative, try the Error Function ( erf(x) )

EDIT: ~sigh~ I just realized the erf(x) also has bounds, my bad.

 

[Zurtex]

From memory the Gaussian integral is from infinity to negative infinity..if you want something that act's as an anti derivative, try the Error Function ( erf(x) )

EDIT: ~sigh~ I just realized the erf(x) also has bounds, my bad.

Thanks, the problem was actually in response to a house mate on a physics course who had this integral and was utterly perplexed how one would integrate it from negative to positive infinity. I remembered it was a standard integral but forgot the details how to do it, anyway in the end it turned out he was integrating over the wrong co-ordinates anyway and it was much more simple once he transformed the integral.

But thanks for trying

 

[uart]

Zurtex, this was already being discussed in another thread at about the same time as you started this one. See the following link for details :

https://www.physicsforums.com/showthread.php?t=171014

 

[theperthvan]

how about integrating it wrt x. Easy!