I am facing some problem about derivatives in spherical coordinates
in spherical coordinates:
x=r sinθ cos\phi
y=r sinθ sin\phi
z=r cosθ
and
r=\sqrt{x^{2}+y^{2}+z^{2}}
θ=tan^{-1}\frac{\sqrt{x^{2}+y{2}}}{z}
\phi=tan^{-1}\frac{y}{x}
\frac{\partial x}{\partial r}=sinθ cos\phi
then \frac{\partial...
I have read the derivation of the Rayleigh-Jeans law from:
http://www.cv.nrao.edu/course/astr534/BlackBodyRad.html
This derivation is quite similar to the derivation in my textbook.
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