How to Integrate d^2 x or d^3 x in Physics?

[Steve Drake]

Hi Guys,

Ive gone through a 3 year physics degree but can't remember ever touching on this? I am 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

 

[Cyosis]

They represent integrals over a surface or volume.

Example:
$$\int dV=\int d^3x$$

 

[g_edgar]

They represent integrals over a surface or volume.

Example:
$$\int dV=\int d^3x$$

...but rather nonstandard notation, so you should make sure your reader knows what you mean if you ever write it...

 

[Steve Drake]

Thanks guys, i thought it had something to do with that. I am still not sure how to evalute one when no symbols are given. Eg I have this function

$$\int$$ e$$^{-abcd}$$ d³c

and somehow they get

(2pi)^3/2$$\partial$$(bd)

(sorry i suck at latex lol)

where does the 2 pi come from WHAT IS GOING ON

thanks all