Problem with a boundary value problem non linear

[UNKNOWN089]

i've some problem to solve this kind of differential equation, i 've put the link where is the file of my equation, i search a methods that solve it iterativly.


the file is there diablo221 .altervista.org / risultato. nb

 

[Defennder]

Um, what kind of file extension is .nb? I can't open it.

 

[UNKNOWN089]

it's for mathematica