functionpetsc-3.5.1 2014-07-24err = nlfunction(snes,x,f,ctx) % % Example of a nonlinear function needed by SNES % err = 0; f(:) = .5*x(:).*x(:) - 1;
functionpetsc-3.5.1 2014-07-24err = nlfunction(snes,x,f,ctx) % % Example of a nonlinear function needed by SNES % err = 0; f(:) = .5*x(:).*x(:) - 1;