moomoohk

// return C = A * B
public static double[][] multiply(double[][] A, double[][] B) 
{
	int mA = A.length; //row
	int nA = A[0].length; //col
	int mB = B.length;
	int nB = A[0].length;
	if (nA != mB) 
		throw new RuntimeException("Illegal matrix dimensions.");
	double[][] C = new double[mA][nB];

moomoohk

 public matrix mul(matrix B)
 {
	// Return a new matrix which is the matrix product of this
	// with B.
	if((rows()!=B.rows()) || (cols()!=B.cols())) 
	{
       		System.out.println("Error, cannot add since the 2 matrices do not have the same dimensions.");
       		System.exit(0);
       	}
 	matrix M = new matrix(rows(), cols());