operator*=

void operator*=(scalar_type const a)

Multiplies every entry of the matrix by a scalar in-place.

Parameters:

a – the scalar to multiply every entry of this.

Returns:

(None)

Throws:

if the implementation of the semiring multiplication throws.

Complexity:

\(O(mn)\) where \(m\) is DynamicMatrix::number_of_rows and \(m\) is DynamicMatrix::number_of_cols

void product_inplace(DynamicMatrix const &A, DynamicMatrix const &B)

Multiplies A and B and stores the result in this.

Redefines this to be the product of A and B. This is in-place multiplication to avoid allocation of memory for products which do not need to be stored for future use.

Parameters:

• A – the first matrix to multiply

• B – the second matrix to multiply

Returns:

(None)

Throws:

Throws if the implementation of the semiring plus or product throws or std::bad_alloc.

Complexity:

\(O(n ^ 3)\) where \(n\) is DynamicMatrix::number_of_rows or DynamicMatrix::number_of_cols

Warning

This function only applies to matrices with the same number of rows and columns.