CAMLprim value ml_gsl_linalg_QRPT_decomp2(value A, value Q, value R,
value TAU, value P, value NORM)
{
int signum;
GSL_PERMUT_OF_BIGARRAY(P);
_DECLARE_MATRIX3(A, Q, R);
_DECLARE_VECTOR2(TAU, NORM);
_CONVERT_MATRIX3(A, Q, R);
_CONVERT_VECTOR2(TAU, NORM);
gsl_linalg_QRPT_decomp2(&m_A, &m_Q, &m_R, &v_TAU, &perm_P, &signum, &v_NORM);
return Val_int(signum);
}
/**
* C++ version of gsl_linalg_QRPT_decomp2().
* @param A A matrix
* @param q A matrix
* @param r A matrix
* @param tau A vector
* @param p A permutation
* @param signum The sign of the permutation
* @param norm A vector used for column pivoting
* @return Error code on failure
*/
inline int QRPT_decomp2( matrix const& A, matrix& q, matrix& r, vector& tau,
permutation& p, int* signum, vector& norm ){
return gsl_linalg_QRPT_decomp2( A.get(), q.get(), r.get(), tau.get(), p.get(), signum, norm.get() ); }