left_multiply() [1/2]

template<typename T >

void cntr::function< T >::left_multiply	(	cplx *	f,
		T	weight = 1.0
	)

Multiply function values with a matrix-valued function from the left

Purpose

Multiply the function with another matrix-valued function from the left time-pointwisely. The shape of the other matrix-valued function must be the same as the original function.

Parameters

f	the array storing the matrix-valued function.
weight	the factor that function values are multiplied with in addition to the matrix.

Definition at line 464 of file cntr_function_impl.hpp.

{
    cplx *mytemp, *xtemp, *ftemp;
    xtemp = new cplx[element_size_];
    for (int tstp = -1; tstp <= nt_; tstp++) {
        ftemp = f + (tstp + 1) * element_size_;
        mytemp = ptr(tstp);
        element_mult<T, LARGESIZE>(size1_, xtemp,
                ftemp, mytemp);
        element_smul<T, LARGESIZE>(size1_, xtemp, weight);
        element_set<T, LARGESIZE>(size1_, mytemp, xtemp);
    }
    delete[] xtemp;
}