Is there any way that I can solve two second order differential equations simultaneously. For example: 1st equation: d^2n/dx^2+dn/dx-n=0 with boundary conditions x(0)=1 and x(100)=1; 2nd equation: d^2p/dx^2-dp/dx-p=0 with p(0)=1 and p(100)=1

Is there any way that I can solve two second order differential equations simultaneously. For example: 1st equation: d^2n/dx^2+dn/dx-n=0 with boundary conditions x(0)=1 and x(100)=1; 2nd equation: d^2p/dx^2-dp/dx-p=0 with boundary conditions, p(0)=1 and p(100)=1.

Answer 1

[Torsten]

Use the analytical solutions you can obtain under

http://www.wolframalpha.com/input/?i=y%27%27+%2B+y%27+-+y+%3D+0%2C+y%280%29%3D1%2C+y%28100%29%3D1

Best wishes

Torsten.

Torsten.