MATRIX Calculator in C language code

[fazzi33ch]

If you have any problem or question regarding this programe please contact me join_fazzi@hotmail.com.

Just run this programe in BORLAND TURBO C.
By using this programe you can find the addtion, subtraction, multiplication, transpose, inverse, determinant of the Matix.

/* MATRIX CALCULATOR */
/* DATE: 14-01-2008 */
/* PREPARED BY MUHAMMAD FAISAL MAHMOOD +92 344 4387887*/

#include <stdio.h>
#include <conio.h>
void main ()
{
int a[3][3], b[3][3], c[3][3];
int i,j,k,l,p,q,r,s;
clrscr();
while(l!=8)
{
printf("\n**************************\n INSTRUCTIONS\n**************************\n\n PLEASE enter the choice againt which matrix operation you want to apply.\n\nENTER 1 to perform matrix addition\nENTER 2 to perform subtraction\nENTER 3 to perform mutilpication\nENTER 4 to perform scalar matrix Mulitplication\nENTER 5 to perform matrix Inversion\nENTER 6 to find determinant of matrix\nENTER 7 to find transpose of a matrix\nENTER 8 to EXIT from program");
printf("\n\n PLEASE ENTER YOUR CHOICE: ");
scanf("%d",&l);

if(l==1)
{
printf("\n\nENTER First 3*3 matrix for addition\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\n");
printf("Element at %d*%d: ",i+1,j+1);
scanf("%d",&a[i][j]);
}
}
printf("\n\nENTER SECOND 3*3 matrix for addition\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\n");
printf("Element at %d*%d: ",i+1,j+1);
scanf("%d",&b[i][j]);
}
}

for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
c[i][j]=0; /*TO AVOID CARBAGE VALUES*/
c[i][j] = a[i][j] + b[i][j];
}
}
printf("\n FIRST MATIRX YOU ENTERED\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t", a[i][j]);
}
printf("\n");
}
printf("\n");
printf("\n SECOND MATRIX YOU ENTERED\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t",b[i][j]);
}
printf("\n");
}
printf("\nRESULT =\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t",c[i][j]);
}
printf("\n");
}
}

if(l==2)
{
printf("\n\nENTER FIRST 3*3 matrix for subtraction\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nElement at %d*%d: ",i+1,j+1);
scanf("%d",&a[i][j]);
}
}

printf("\n\nENTER SECOND 3*3 matrix for subtraction\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nElement at %d*%d: ",i+1,j+1);
scanf("%d",&b[i][j]);
}
}

for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
c[i][j]=0; /*TO AVOID CARBAGE VALUES*/
c[i][j] = a[i][j] - b[i][j];
}
}
printf("\n FIRST MATIRX YOU ENTERED\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t", a[i][j]);
}
printf("\n");
}

printf("\n SECOND MATRIX YOU ENTERED\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t",b[i][j]);
}
printf("\n");
}

printf("\nRESULT =\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t",c[i][j]);
}
printf("\n");
}
}

if (l==3)
{
printf("\nENTER First 3*3 matrix for MULIPLICATION\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nElement at %d*%d: ",i+1,j+1);
scanf("%d",&a[i][j]);
}
}
printf("\nENTER Second 3*3 matrix for MULIPLICATION\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nElement at %d*%d: ",i+1,j+1);
scanf("%d",&b[i][j]);
}
}
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
c[i][j]=0; /* TO AVOID CARBAGE VALUES*/
for(k=0;k<3;k++)
c[i][j]=c[i][j]+(a[i][k]*b[k][j]);
}
}
printf("\nFIRST MATRIX YOU ENTERED:\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t",a[i][j]);
}
printf("\n");
}
printf("\nSECOND MATRIX YOU ENTERED:\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t ",b[i][j]);
}
printf("\n");
}
printf("\n\nRESULT= \n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d ",c[i][j]);
}
printf("\n");
}
}

if(l==4)
{
printf("\nENTER THE NO TO WHICH YOU WANT TO MUTILY MATRIX: ");
scanf("%d",&k);
printf("\nENTER 3*3 Matrix for scalar Multiplication by %d:\n",k);
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nElement at %d*%d: ",i+1,j+1);
scanf("%d",&a[i][j]);
}
}
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
c[i][j]=0;
c[i][j]= k*a[i][j];
}
}
printf("\n FIRST MATIRX YOU ENTERED\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t", a[i][j]);
}
printf("\n");
}
printf("\nRESULT =\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t",c[i][j]);
}
printf("\n");

}
}
if(l==5)
{
printf("\nEnter the MATRIX to find its INVERSE");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nElement at %d*%d= ",i+1,j+1);
scanf("%d",&a[i][j]);
}
printf("\n");
}
b[0][0]=((a[1][1]*a[2][2])-(a[2][1]*a[1][2]));
b[0][1]=-((a[0][1]*a[2][2])-(a[2][1]*a[0][2]));
b[0][2]=((a[0][1]*a[1][2])-(a[1][1]*a[0][2]));
b[1][0]=-((a[1][0]*a[2][2])-(a[1][2]*a[2][0]));
b[1][1]=((a[0][0]*a[2][2])-(a[2][0]*a[0][2]));
b[1][2]=-((a[0][0]*a[1][2])-(a[1][0]*a[0][2]));
b[2][0]=((a[1][0]*a[2][1])-(a[2][0]*a[1][1]));
b[2][1]=-((a[0][0]*a[2][1])-(a[2][0]*a[0][1]));
b[2][2]=((a[0][0]*a[1][1])-(a[1][0]*a[0][1]));
p=a[0][0]*((a[1][1]*a[2][2])-(a[2][1]*a[1][2]));
q=a[0][1]*((a[1][0]*a[2][2])-(a[1][2]*a[2][0]));
r=a[0][2]*((a[1][0]*a[2][1])-(a[1][1]*a[2][0]));
s=p-q+r;
printf("\nMATIRX YOU ENTERED\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t", a[i][j]);
}
printf("\n");
}
printf("\nDeterminant of the matrix is= %d\n",s);
printf("\nInverse of the matrix is\n\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("%d/%d ",b[i][j],s);
}
printf("\n");
}
}
if(l==6)
{
printf("\nENTER the matrix to find Determinant\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nElement at %d*%d: ",i+1,j+1);
scanf("%d",&a[i][j]);
}
}

k= a[0][0]*( a[1][1]*a[2][2] - a[1][2]*a[2][1] ) - a[0][1]*( a[1][0]*a[2][2]-a[1][2]*a[2][0] ) + a[0][2]*( a[1][0]*a[2][1] - a[1][1]*a[2][0] );
printf("\nMATIRX YOU ENTERED\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t", a[i][j]);
}
printf("\n");
}
printf("\nDETERMINANT= %d",k);
}

if(l==7)
{
printf("\nENTER the matrix you wish to inverted\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf("\nElement at %d*%d: ",i+1,j+1);
scanf("%d",&a[i][j]);
}
}
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
c[i][j]=0;
c[0][0]=a[0][0];
c[0][1]=a[1][0];
c[0][2]=a[2][0];
c[1][0]=a[0][1];
c[1][1]=a[1][1];
c[1][2]=a[2][1];
c[2][0]=a[0][2];
c[2][1]=a[1][2];
c[2][2]=a[2][2];
}
}
printf("\nMATIRX YOU ENTERED\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t", a[i][j]);
}
printf("\n");
}
printf("\nRESULT =\n");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
printf(" %d \t",c[i][j]);
}
printf("\n");
}
}

if(l==8)
{
clrscr();
printf("\n\n\n THANKYOU VERY MUCH!!\n For Using MATRIX CALCULATOR");
}
if(l>=9)
{
clrscr();
printf("\n\n\n\n WARNING!\n YOU HAVE ENTERED AN INVALID ENTRY \n PLEASE SELECT A VALID ENTRY PRESS ENTER FOR ( OK )");
}
getch();
}
}
/*___________________THE END_____________________*/

[Dark power]

Thanks man.Its work.I like it .