Madagascar Programming Reference Manual

Definition

void sf_ccgstep( bool forget          /* restart flag */, 
                 int nx               /* model size */, 
                 int ny               /* data size */, 
                 sf_complex* x        /* current model [nx] */,  
                 const sf_complex* g  /* gradient [nx] */, 
                 sf_complex* rr       /* data residual [ny] */,
                 const sf_complex* gg /* conjugate gradient [ny] */) 
/*< Step of Claerbout's conjugate-gradient iteration for complex operators. 
    The data residual is rr = A x - dat
>*/
{
   ...
}