- #1
Beer-monster
- 296
- 0
Homework Statement
If we have volume integral of a Gaussian function, in phase space for example.
[tex]F= \int^{\infty}_{-\infty} e^{-aq} d^{3}q [/tex]
Now, I think the the answer would be the standard answer for a Gaussian integral cubed wouldn't it?
[tex] F=\left(\frac{\pi}{a}\right) ^{3/2} [/tex]
I was wondering if this answer could apply in general to all 3d volumes regardless of their coordinate system. For example a system with cylindrical symmetry
[tex] C = \int^{\infty}_{-\infty} e^{-aq} rdr d \phi dz [/tex]
Would this have a similar answer? If not can it be found if I don't explicitly know the radial, angular or vertical components of the displacements q?