How to solve differential equation with boundary conditions?

[matus.s...@privatdemail.net]

import sympy as sp
s,v,x=sp.symbols('s v x')
f=sp.Function('f')
temp=sp.dsolve(sp.diff(f(x), x,x)*s**2/2 -v*sp.diff(f(x),x)+1, f(x),  ics={f(0):0, f(a):0})

The output is equation for f(x) with variables C1, C2, v, x and s (Why?!). I want an equation in terms of x,s,v and a, that's why I supplied the boundary conditions in the first place. How can I do that?

[Aaron Meurer]

There is an open pull request to make this work https://github.com/sympy/sympy/pull/11264

For now, you will have to substitute them manually using subs. 

Aaron Meurer

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