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#ifndef DHSX_H
#define DHSX_H
/* A general purpose downhill simplex multivariate optimser, */
/* as described in */
/* "Numerical Recipes in C", by W.H.Press, B.P.Flannery, */
/* S.A.Teukolsky & W.T.Vetterling. */
#ifdef __cplusplus
extern "C" {
#endif
/* Down hill simplex function */
/* return err on sucess, -1.0 on failure */
/* Result will be in cp */
/* Arrays start at 0 */
/* Standard interface for optimizer function */
/* return 0 on sucess, 1 on failure due to excessive itterations */
/* Result will be in cp */
/* Arrays start at 0 */
int dhsx(
double *rv, /* If not NULL, return the residual error */
int di, /* Dimentionality */
double cp[], /* Initial starting point */
double s[], /* Size of initial search area */
double ftol, /* Tollerance of error change to stop on */
double atol, /* Absolute return value tollerance */
int maxit, /* Maximum iterations allowed */
double (*funk)(void *fdata, double tp[]), /* Error function to evaluate */
void *fdata /* Data needed by function */
);
double dhsx_funk( /* Return function value */
void *fdata, /* Opaque data pointer */
double tp[]); /* Multivriate input value */
#ifdef __cplusplus
}
#endif
#endif /* DHSX_H */
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