How to solve Gaussian integrals

[PhilosophyofPhysics]

Can you direct me to any websites or papers on how to solve these? We've been coming across them in Physics III, and I really want to know how to solve them. lol, It's getting annoying not knowing how to solve them or differential equations (finally taking it next semester).

 

[quasar987]

check out

https://www.physicsforums.com/showthread.php?t=140779

 

[PhilosophyofPhysics]

thanks, awesome

 

[Swapnil]

Here is another one:
http://www.math.duke.edu/~wka/math135/int.pdf