ODE Solver through Galerkin Method

This program solves Ordinary Differential Equations by using the Galerkin method.

Description

[APPROX,EXAC,ERR] = ODEGALERKIN(POLY,CC,N) solves Ordinary Differential Equations (ODE)through Galerkin method, by inserting the characteristic polynomial matrix "POLY", boundary conditions "CC" and the finite quantity of approximative base functions "N". Outputs of the program are the approximative solution "APPROX", the analitic solution "EXAC" and the percentage error "ERR" (%). A plot of the approximative and analitic solution is also shown.

• MATLAB release: MATLAB 7.6 (R2008a)

[Mitran Costin]

I've run the program with "Matlab R2008a" but I've received the next error message:

 ?? Input argument "poly" is undefined.
    Error in ==> odegalerkin at 54
    alpha=poly(1);

   I think the problem is with the poly function. Do you have this poly function or this is the same function from the matlab library ?

   Also please check the email because I sent you some questions/proposal regarding this method.

Best regards,
Costin

[Ramin Shamshiri]

I received error message trying this program.

[Alejandra]

 

[Anie Ekpes]

This is the error message I received trying ti Run this program
Error in ==> odegalerkin at 54
alpha=poly(1);
how do I correct this error