norm()

template<typename T>

gmp_RRorNull MutableMat< T >::norm ( ) const

virtual

Implements MutableMatrix.

Definition at line 368 of file mutablemat-imp.hpp.

{
  if (get_ring()->get_precision() == 0)
    throw exc::engine_error("expected a matrix over RR or CC");
 
  gmp_RRmutable nm = getmemstructtype(gmp_RRmutable);
  mpfr_init2(nm, get_ring()->get_precision());
  mpfr_set_si(nm, 0, MPFR_RNDN);
 
  MatrixOps::increase_norm(nm, mat);
  return moveTo_gmpRR(nm);
}

References get_ring(), getmemstructtype, MatrixOps::increase_norm(), mat, and moveTo_gmpRR().