is_diagonal_matrix()

bool Chusov::Math::is_diagonal_matrix ( const ValueType *  column_matrix, std::size_t  columns, std::size_t  rows  )

noexcept

Checks whether a matrix given by an array of columns is a diagonal matrix.

Template Parameters

ValueType

A type of a matrix element.

Parameters

[in]	column_matrix	A pointer to an array of columns * rows elements, specifying a set of column vectors composing the matrix.
	columns	A number of columns in the matrix column_matrix.
	rows	A number of rows in the matrix.

Returns

true if the matrix all elements, except for perhaps elements on the main diagonal, equal to a default-constructed element of type ValueType(). Otherwise, false.