Astronuc

[tex]\frac{\partial^2 u}{\partial x^2}-\frac{\partial u}{\partial t} = 2[/tex]

See if these help

http://math.fullerton.edu/mathews/n2...colsonMod.html

Nice summary of PDE's
http://instruct1.cit.cornell.edu/cou...Fa00_notes.doc use save target as