identity()

MutableMatrix * MutableMatrix::identity ( const Ring * R, size_t nrows, bool dense )

static

Definition at line 69 of file mat.cpp.

{
  MutableMatrix *result = MutableMatrix::zero_matrix(R, nrows, nrows, dense);
  for (size_t i = 0; i < nrows; i++) result->set_entry(i, i, R->from_long(1));
  return result;
}

References Ring::from_long(), MutableMatrix(), result(), and zero_matrix().

Referenced by IM2_MutableMatrix_identity(), and MutableComplex::prune_complex().