# SageManifold solving differential equations (Schwarzschild metric)

Hi

I've been following Schwarzschild derivation here https://en.wikipedia.org/wiki/Derivin... and I've come to the point where I have the three differential equations listed in the above link.

I tried to solve it with

desolve_system

as follows: https://www.dropbox.com/s/1uihjhzm2k1...

But it does not seem to be working. Am I missing something? It's a system of nonlinear differential equations