# C > Beginners Lab Assignments Code Examples

## Program to find Determinant of a Matrix

``` Program to find Determinant of a Matrix #include<stdio.h> #include<conio.h> #define LIMIT 10 void main() { int chckdgnl(); float deter(); float a[LIMIT][LIMIT],value; int i,j,order; clrscr(); printf("Enter order of determent :"); scanf("%d",&order); for(i=0;i<order;i++) { for(j=0;j<order;j++) { printf("Enter (%d,%d) element of the determent :",i+1,j+1); scanf("%f",&a[i][j]); } } if(chckdgnl(a,order)==0) value=0; else value=deter(a,order); printf("Determinent Value :%f",value); getch(); } float deter(float a[][LIMIT],int forder) { int i,j,k; float mult; float deter=1; for(i=0;i<forder;i++) { for(j=0;j<forder;j++) { mult=a[j][i]/a[i][i]; for(k=0;k<forder;k++) { if(i==j) break; a[j][k]=a[j][k]-a[i][k]*mult; } } } for(i=0;i<forder;i++) { deter=deter*a[i][i]; } return(deter); } int chckdgnl(float array[][LIMIT],int forder) { int i,j,k; float nonzero; for(i=0;i<forder;i++) { if(array[i][i]==0) { for(j=0;j<forder;j++) { if(array[i][j]!=0) { k=j; break; } if(j==(forder)) //forder-1 return(0); } for(j=0;j<forder;j++) { array[j][i]=array[j][i]-array[j][k]; } } } return(1); } ```