> How I can solve (numerically or other) a non-linear differential
> equation (simple or partial) with Mathematica ? Regards,
There are built-in functions called DSolve[] and NDSolve[]. You can
read brief statements of their sytnax requirements at URLS:
http://www.wolfram.com/support/Kernel/Symbols/System/DSolve.html
http://www.wolfram.com/support/Kernel/Symbols/System/NDSolve.html
Additional examples can be found in _The Mathematica Book_ (Third
Edition).
--
P.J. Hinton
Mathematica Programming Group pa...@wolfram.com Wolfram
Research, Inc. http://www.wolfram.com/~paulh/
Disclaimer: Opinions expressed herein are those of the author alone.