revan730

public class MatrUtil {

    static double[][] mult(double[][] Mat1,double[][] Mat2){
        if (Mat1.length != Mat2[0].length || Mat1[0].length != Mat2.length) throw new ArithmeticException("Множення не можливе");
        else {
            double[][] C = new double[Mat1.length][Mat2[0].length];
            for (int i = 0; i < Mat1.length; i++) {
                for (int j = 0; j < Mat2[0].length; j++) {
                    double s = 0;
                    for (int k = 0; k < Mat1[0].length; k++) s += Mat1[i][k] * Mat2[k][j];