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matrix multiply, divide, sum

Breakable Boar answered on September 1, 2023 Popularity 1/10 Helpfulness 1/10

answer matrix multiply, divide, sum

matrix multiply, divide, sum

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package com.company.Array;

public class twoMatrix {
    public static void main(String[] args) {
        int[][] m1 = {
                {34, 3, 6, 7},
                {22, 2, 4, 90},
                {1, -3, 0, 5}
        };
        int[][] m2 = {
                {1, 21, 0, 1},
                {3, 8, 4, 5},
                {1, 4, 66, 7}
        };

        prnMatrix(multMatrices(m1, m2));
        prnMatrix(sumMatrix(m1, m2));
        prnMatrix(divMatrix(m1, m2));

    }

    private static void prnMatrix (int[][] m){
        for (int i = 0; i < m.length; i++) {
            for (int j = 0; j < m[0].length; j++) {
                System.out.print(m[i][j] + "\t");
            }
            System.out.println();
        }
        System.out.println();
    }

    private static int[][] multMatrices(int[][] mtr1, int[][] mtr2) {
        int rows = mtr1.length;
        int cols = mtr1[0].length;
        int[][] sum = new int[rows][cols];

        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                sum[i][j] = mtr1[i][j] * mtr2[i][j];
            }
        }
        return sum;
    }

    private static int[][] sumMatrix(int[][] mtr1, int[][] mtr2) {
        int rows = mtr1.length;
        int cols = mtr1[0].length;
        int[][] sum = new int[rows][cols];

        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                sum[i][j] = mtr1[i][j] + mtr2[i][j];
            }
        }
        return sum;
    }

    private static int[][] divMatrix(int[][] mtr1, int[][] mtr2) {
        int rows = mtr1.length;
        int cols = mtr1[0].length;
        int[][] sum = new int[rows][cols];

        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                if (mtr2[i][j] == 0) sum[i][j] = 0;
                else sum[i][j] = mtr1[i][j] / mtr2[i][j];
            }
        }
        return sum;
    }
}

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java matrix sum

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Contributed on Sep 01 2023

Breakable Boar

0 Answers Avg Quality 2/10

matrix multiply, divide, sum

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