Finding the matrix tangent

Here’s an example of a Java program that calculates the tangent of each element in a given matrix:

  import java.util.Arrays;

   public class MatrixTangent {

    public static void main(String[] args) {

        double[][] matrix = {

            {0.5, 1.0, 1.5},

            {2.0, 2.5, 3.0},

            {3.5, 4.0, 4.5}

        };      

        double[][] tangentMatrix = calculateMatrixTangent(matrix);

        // Print the original matrix

        System.out.println("Original Matrix:");

        printMatrix(matrix);

        // Print the tangent matrix

        System.out.println("\nTangent Matrix:");

        printMatrix(tangentMatrix);

    }
    public static double[][] calculateMatrixTangent(double[][] matrix) {

        int rows = matrix.length;

        int cols = matrix[0].length;

        double[][] tangentMatrix = new double[rows][cols];

        for (int i = 0; i < rows; i++) {

            for (int j = 0; j < cols; j++) {

                tangentMatrix[i][j] = Math.tan(matrix[i][j]);

            }
        }
        return tangentMatrix;
    }
    public static void printMatrix(double[][] matrix) {

        for (double[] row : matrix) {

            System.out.println(Arrays.toString(row));

        }
    }
}

This program defines a `calculateMatrixTangent` function that takes a 2D matrix as input and returns a new matrix where each element is the tangent of the corresponding element in the original matrix. The `printMatrix` function is used to display the matrices on the console.

In the `main` method, a sample matrix is provided, and the original matrix as well as the tangent matrix are printed to the console.

Note: This example assumes that the input matrix is a square matrix (i.e., the number of rows is equal to the number of columns). If you have a non-square matrix, you’ll need to modify the code accordingly.