GetElementDirect() [1/2]

reference GetElementDirect ( size_type  iColumn, size_type  iRow  )

protected

Retrieves a mutable reference to a matrix element at a specified position. No validity check for the indices is performed.

Parameters

iColumn	An index of the column the retrieved element belongs to.
iRow	An index of a row the element belongs to.

Returns

A reference to an element that is located in a column iColumn and in a row iRow.

Unlike the publicly available indexing operators of the matrix, existence of the elements addressed by iColumn and iRow is not validated.