*Find determinant of matrix*

Write a C program to find determinant of matrix. Here’s simple program to find determinant of matrix in C Programming Language.

*What is Matrix ?*

**Matrix representation** is a method used by a computer language to store matrices of more than one dimension in memory. C uses “Row Major”, which stores all the elements for a given row contiguously in memory.

*Two-dimensional Arrays : :*

The simplest form of multidimensional array is the two-dimensional array. A two-dimensional array is, in essence, a list of one-dimensional arrays. An m × n (read as m by n) order matrix is a set of numbers arranged in m rows and n columns.

To declare a two-dimensional integer array of size [x][y], you would write something as follows −

*type arrayName [ x ][ y ];*

Where **type** can be any valid C data type and **arrayName** will be a valid C identifier.

Below is the source code for C program to find determinant of matrix which is successfully compiled and run on Windows System to produce desired output as shown below :

**SOURCE CODE : :**

**SOURCE CODE : :**

/* C program to find determinant of matrix */ #include <stdio.h> int main() { int A[2][2]; int row, col; long det; /* * Reads elements in matrix A from user */ printf("\nEnter values to the matrix 2x2 :: \n"); for(row = 0; row<2; row++) { for(col = 0; col<2; col++) { printf("\nEnter a[%d][%d] value :: ",row,col); scanf("%d", &A[row][col]); } } /* * det(A) = ad - bc * a = A[0][0], b = A[0][1], c = A[1][0], d = A[1][1] */ det = (A[0][0] * A[1][1]) - (A[0][1] * A[1][0]); printf("\nDeterminant of matrix A = %ld ", det); return 0; }

**Output : :**

**Output : :**

/* C program to find determinant of matrix */ Enter values to the matrix 2x2 :: Enter a[0][0] value :: 3 Enter a[0][1] value :: 4 Enter a[1][0] value :: 5 Enter a[1][1] value :: 6 Determinant of matrix A = -2 Process returned 0

Above is the source code for C program to find determinant of matrix which is successfully compiled and run on Windows System.The Output of the program is shown above .

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