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test: DeterminantOfMatrix (#5376)

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Alex Klymenko
2024-08-24 10:38:16 +02:00
committed by GitHub
parent aefc8fd4b8
commit 84fb717509
2 changed files with 57 additions and 21 deletions
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28
src/main/java/com/thealgorithms/maths/DeterminantOfMatrix.java
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@ -1,7 +1,5 @@
package com.thealgorithms.maths;
import java.util.Scanner;
/*
* @author Ojasva Jain
* Determinant of a Matrix Wikipedia link: https://en.wikipedia.org/wiki/Determinant
@ -10,8 +8,13 @@ public final class DeterminantOfMatrix {
private DeterminantOfMatrix() {
}
// Determinant calculator
//@return determinant of the input matrix
/**
* Calculates the determinant of a given matrix.
*
* @param a the input matrix
* @param n the size of the matrix
* @return the determinant of the matrix
*/
static int determinant(int[][] a, int n) {
int det = 0;
int sign = 1;
@ -41,21 +44,4 @@ public final class DeterminantOfMatrix {
}
return det;
}
// Driver Method
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
// Input Matrix
System.out.println("Enter matrix size (Square matrix only)");
int n = in.nextInt();
System.out.println("Enter matrix");
int[][] a = new int[n][n];
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
a[i][j] = in.nextInt();
}
}
System.out.println(determinant(a, n));
in.close();
}
}