* @param leftSideMatrix
*/
@Override
public void setMatrix(final IDoubleArray A) {
leftSideMatrix = new no.uib.cipr.matrix.sparse.FlexCompColMatrix( A.rows(), A.columns());
wrappedLeftSideMatrix = new WrappedMTJMatrix( leftSideMatrix );
wrappedLeftSideMatrix.copyFrom(A); // copy values to wrapped mtj matrix leftSideMatrix
}