Jacobi/Gauss-Seidel - Initial guess

[gmikel]

Hi-

I noticed that there is not an argument specifying what the initial guess vector should be for both Jacobi and Gauss-Seidel methods. Is there a specific one we should use? Or should we add an argument?

Thanks,

-Garrett

[mvelegar]

@gkelley87 please do not add an argument to the function signature. You can start with an initial guess of zeros.

[cswiercz]

I will update the problem statement with this suggested initial guess.