Write a c-program to simulate a simple calculator that performs addition subtraction multiplication and division of integers?

Answer 1

# include<stdio.h> void display(int [][3]); void main() { int c; void func1(); void func2(); void func3(); void func4(); void func5(); clrscr(); printf("\n- : Matrix Manipulation Functions (for 3 X 3 Matrix) : -"); printf("\n-------------------------------------"); printf("\n Matrix Addition : 1"); printf("\n Matrix Subtraction : 2"); printf("\n Matrix Multiplication : 3"); printf("\n Find Transpose Matrix : 4"); printf("\n Matrix is Symmetric or not : 6"); printf("\n Enter Your Choice : "); scanf("%d",&c); switch(c) { case 1: func1(); break; case 2: func2(); break; case 3: func3(); break; case 4: func4(); break; case 5: func5(); break; default: printf("\nInvalid Choice"); } getch(); } void func1() { int x[3][3],y[3][3],z[3][3]; void getmatrix(int [][3]); void addition(int [][3],int [][3],int [][3]); clrscr(); getmatrix(x); getmatrix(y); addition(x,y,z); printf("\n - : Matrix 1: - \n"); display(x); printf("\n - : Matrix 2: - \n"); display(y); printf("\n - : Matrix Addition (Result): - \n"); display(z); } void getmatrix(int t[][3]) { int i,j; for(i=0;i<3;i++) { for(j=0;j<3;j++) { printf("Enter element [%d][%d] : ",i,j); scanf("%d",&t[i][j]); } } } void addition(int p[][3],int q[][3],int r[][3]) { int i,j; for(i=0;i<3;i++) { for(j=0;j<3;j++) r[i][j]=p[i][j]+q[i][j]; } } void func2() { int x[3][3],y[3][3],z[3][3]; void getmatrix(int [][3]); void subtraction(int [][3],int [][3],int [][3]); clrscr(); getmatrix(x); getmatrix(y); subtraction(x,y,z); printf("\n - : Matrix 1: - \n"); display(x); printf("\n - : Matrix 2: - \n"); display(y); printf("\n - : Matrix Subtraction (Result): - \n"); display(z); } void subtraction(int p[3][3],int q[3][3],int r[3][3]) { int i,j; for(i=0;i<3;i++) { for(j=0;j<3;j++) r[i][j]=p[i][j]-q[i][j]; } } void func3() { int x[3][3],y[3][3],z[3][3]; void getmatrix(int [][3]); void multiplication(int [][3],int [][3],int [][3]); clrscr(); getmatrix(x); getmatrix(y); multiplication(x,y,z); printf("\n - : Matrix 1: - \n"); display(x); printf("\n - : Matrix 2: - \n"); display(y); printf("\n - : Matrix Multiplication (Result): - \n"); display(z); } void multiplication(int p[][3],int q[3][3],int r[3][3]) { int i,j,k; for(i=0;i<3;i++) //condition i< total row of matrix1 { for(j=0;j<3;j++) //condition i< total col of matrix1 or//condition i< total row of matrix2 { r[i][j]=0; for(k=0;k<3;k++) //condition i< total col of matrix2 r[i][j]=r[i][j]+(p[i][j]*q[j][k]); } } } void func4() { int x[3][3],y[3][3]; void getmatrix(int [][3]); void transpose(int [][3],int [][3]); clrscr(); getmatrix(x); transpose(x,y); printf("\n - : Matrix 1: - \n"); display(x); printf("\n - : Transpose Matrix : - \n"); display(y); } void transpose(int p[][3],int q[][3]) { int i,j; for(i=0;i<3;i++) { for(j=0;j<3;j++) q[i][j]=p[j][i]; } } void func5() { int x[3][3],y[3][3]; void getmatrix(int [][3]); void transpose(int [][3],int [][3]); int symmetric(int [][3],int [][3]); clrscr(); getmatrix(x); transpose(x,y); if(symmetric(x,y)==1) printf("\nMatrix is Symmetric"); else printf("\nMatrix is Not Symmetric"); } int symmetric(int p[][3],int q[][3]) { int i,j; for(i=0;i<3;i++) { for(j=0;j<3;j++) { if(q[i][j]!=p[i][j]) return 0; } } return 1; } void display(int m[][3]) { int i,j; printf("\n\n"); for(i=0;i<3;i++) { for(j=0;j<3;j++) printf("%d ",m[i][j]); printf("\n"); } }