[petsc-users] SNES realted

[Dharmendar Reddy]

Hello,
        I am solving a set of equations with SNES
F1 (x1,x2,x3) = 0
F2 (x1,x2,x3) = 0
F3 (x1,x2,x3) = 0

x1 and x2 are always > 0, how do i enforce that during the linesearch ?

The system of equations is shown on page 1 of pdf here
http://dunham.ee.washington.edu/ee531/notes/SemiRev.pdf

F1 = equation 1
F2 = equation 2
F3 = equation 5

x1 = n, X2=p and X3 = psi

Thanks
Reddy