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Java Program to Perform Matrix Addition
Photo Credit to CodeToFun
π Introduction
Matrix addition is a fundamental operation in linear algebra and computer science. It involves adding corresponding elements of two matrices to create a new matrix.
This operation is essential in various fields, including computer graphics, scientific computing, and data analysis.
In this tutorial, we'll explore a Java program that efficiently performs matrix addition.
Understanding matrix operations and implementing them in C can provide a solid foundation for more complex computations.
π Example
Let's delve into the Java code that achieves matrix addition.
public class MatrixAddition {
// Function to perform matrix addition
static int[][] addMatrices(int[][] mat1, int[][] mat2) {
int rows = mat1.length;
int cols = mat1[0].length;
int[][] result = new int[rows][cols];
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < cols; ++j) {
result[i][j] = mat1[i][j] + mat2[i][j];
}
}
return result;
}
// Function to display a matrix
static void displayMatrix(int[][] matrix) {
for (int[] row: matrix) {
for (int value: row) {
System.out.print(value + " ");
}
System.out.println();
}
}
// Driver program
public static void main(String[] args) {
// Sample matrices for testing
int[][] matrix1 = {
{1,2, 3},
{4, 5, 6},
{7, 8, 9}
};
int[][] matrix2 = {
{9, 8, 7},
{6, 5, 4},
{3, 2, 1}
};
// Call the function to perform matrix addition
int[][] resultMatrix = addMatrices(matrix1, matrix2);
// Displaying matrices and result
System.out.println("Matrix 1:");
displayMatrix(matrix1);
System.out.println("\nMatrix 2:");
displayMatrix(matrix2);
System.out.println("\nResultant Matrix:");
displayMatrix(resultMatrix);
}
}
π» Testing the Program
Feel free to replace the sample matrices with your own 3x3 matrices in the main method to test the program with different input.
Matrix 1: 1 2 3 4 5 6 7 8 9 Matrix 2: 9 8 7 6 5 4 3 2 1 Resultant Matrix: 10 10 10 10 10 10 10 10 10
Compile and run the program to see the result of the matrix addition.
π§ How the Program Works
- The program defines a class MatrixAddition containing static methods addMatrices to add two matrices and displayMatrix to display a matrix.
- In the main method, sample matrices matrix1 and matrix2 are provided for testing.
- The addMatrices method is called to perform the addition, and the result is stored in resultMatrix.
- The matrices are displayed using the displayMatrix method.
π§ Understanding the Concept of Matrix Addition
Matrix addition involves adding corresponding elements of two matrices to create a new matrix.
Given two matrices A and B, the sum C is calculated as follows:
Cij = Aij + Bij.
where Cij is the element at the i-th row and j-th column of matrix C, and Aij and Bij are the corresponding elements of matrices A and B.
Matrix addition is only defined for matrices of the same size; that is, they must have the same number of rows and columns.
π’ Optimizing the Program
While the provided program is effective, there are optimizations that can be applied for larger matrices. Consider exploring techniques such as parallelization for improved performance.
Feel free to incorporate and modify this code as needed for your specific use case. Happy coding!
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