JAva Java 现有矩阵A和B,大小3*3,编写函数,两个矩阵相加,

Question

Java 现有矩阵A和B,大小3*3,编写函数,两个矩阵相加,原型double【】【】,Add Mathix【】【】（doubleA【】doubleB【】）

Answer 1

是这种吗

    public static void main(String[] args) {
        double[][] a ={{1,2,3},{4,5,6},{7,8,9}};
        double[][] b ={{1,2,3},{4,5,6},{7,8,9}};
        double[][] sum = matrixAdd(a,b);
        for (int i = 0; i < sum.length; i++) {
            for (int j = 0; j < sum[i].length; j++) {
                System.out.print(sum[i][j]+"\t");
            }
            System.out.println();
        }
    }

    private static double[][] matrixAdd(double[][] a, double[][] b) {
        double[][]c = new double[a.length][a[0].length];
        for (int i = 0; i < a.length; i++) {
            for (int j = 0; j < a[i].length; j++) {
                c[i][j] = a[i][j]+b[i][j];
            }
        }
        return c;
    }