Integrating WRT d^2 x or d^3 x

  • #1

Main Question or Discussion Point

Hi Guys,

Ive gone through a 3 year physics degree but cant remember ever touching on this? Im doing some work and some of the theory contains integrals of d2x or d3R for instance. I have no idea how to do these.

Any help?

Thanks all
 

Answers and Replies

  • #2
Cyosis
Homework Helper
1,495
0
They represent integrals over a surface or volume.

Example:
[tex]
\int dV=\int d^3x
[/tex]
 
  • #3
607
0
They represent integrals over a surface or volume.

Example:
[tex]
\int dV=\int d^3x
[/tex]
...but rather nonstandard notation, so you should make sure your reader knows what you mean if you ever write it...
 
  • #4
Thanks guys, i thought it had something to do with that. Im still not sure how to evalute one when no symbols are given. Eg I have this function

[tex]\int[/tex] e[tex]^{-abcd}[/tex] d3c

and somehow they get

(2pi)3/2[tex]\partial[/tex](bd)

(sorry i suck at latex lol)

where does the 2 pi come from WHAT IS GOING ON

thanks all
 

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