add_to_diagonal

Header: <pressio/ops.hpp>

API

namespace pressio { namespace ops{

template<class T1, class ScalarType>
void add_to_diagonal(T1 & operand, const ScalarType & value);

}} // end namespace pressio::ops

Description

• Adds the specified scalar value to each diagonal element of operand

• T must be a rank-2 Eigen matrix

• ScalarType must be convertible to pressio::Traits<T>::scalar_type

Notes

• If the diagonal entries of operand are written, then all diagonal entries must already exist.