C

Calculator in c

#include <stdio.h>
#include <math.h>
#include <string.h>

int main()
{   
    char answer[10];
    char dump;
    printf("Welcome To Cli Calculator
Made by Argha Datta
");
    
    do
    {
        char inputUser;
        float num1, num2, result;
        printf("Please enter your state of operation: ");
        scanf("%c",&inputUser);
    
        printf("Enter the first operand: ");
        scanf("%f",&num1);
        printf("Enter the second operand: ");
        scanf("%f",&num2);
        switch (inputUser)
        {
        case '+':
            printf("The Addition of %f and %f is %f
",num1,num2,num1+num2);
            break;
        case '-':
            printf("The Subtraction of %f and %f is %f
",num1,num2,num1-num2);
            break;
        case '*':
            printf("The Multiplication of %f and %f is %f
",num1,num2,num1*num2);
            break;
        case '/':
            printf("The Division of %f and %f is %f
",num1,num2,num1/num2);
            break;
        case '^':
            printf("The Result of %f ^ %f is %f
",num1,num2,powf(num1,num2));
        default:
            printf("Invalid Operation,please try again!
");
            break;
        }
        printf("Do you want to run it again(if yes ,type yes or type no for exit) :");
        scanf("%s",answer);
        dump = getchar();

    } while (strcmp(answer,"yes")  == 0);
    
    return 0;
}

Calculator in C

#include<stdio.h>
#include<conio.h>

void main()
{
char choice;
int a,b,res=0;
clrscr();
printf("Enter First value: ");
scanf("%d",&a);
printf("
 Enter Operator: ");
choice=getch();
printf("
 Enter Second value: ");
scanf("%d",&b);

switch(choice)
{
case '+':
  res=a+b;
  printf("Sum: %d",res);
break;
case '-':
  res=a-b;
  printf("Difference: %d",res);
break;
case '*':
  res=a*b;
  printf("Product: %d",res);
break;
case '/':
  res=a/b;
  printf("Quotient: %d",res);
break;
default:
  printf("Enter Valid Operator!!");
}
getch();
}