- #1
Somefantastik
- 230
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"flux per unit projected area per unit solid angle,"
[tex] L = \frac{\partial \Phi}{\partial \left(cos \Theta \right) \ \partial \Omega} [/tex]
What is this quantity? I mean, I know it's "flux per unit projected area per unit solid angle," how does the math work?
I know it's not
[tex]\frac{\partial \Phi}{\partial (Acos \Theta)} \frac{\partial \Phi}{\partial \Omega} [/tex]
[tex] L = \frac{\partial \Phi}{\partial \left(cos \Theta \right) \ \partial \Omega} [/tex]
What is this quantity? I mean, I know it's "flux per unit projected area per unit solid angle," how does the math work?
I know it's not
[tex]\frac{\partial \Phi}{\partial (Acos \Theta)} \frac{\partial \Phi}{\partial \Omega} [/tex]