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This is a code made in c program .This program takes an arithmetic operator (+, -, *, /)

/* Source code to create a simple calculator for addition, subtraction, multiplication and division in C programming. */

# include

int main()

{

char o;

float num1,num2;

printf("Enter operator either + or - or * or divide : ");

scanf("%c",&o);

printf("Enter two operands: ");

scanf("%f%f",&num1,&num2);

switch(o) {

case '+':

printf("%.1f + %.1f = %.1f",num1, num2, num1+num2);

break;

case '-':

printf("%.1f - %.1f = %.1f",num1, num2, num1-num2);

break;

case '*':

printf("%.1f * %.1f = %.1f",num1, num2, num1*num2);

break;

case '/':

printf("%.1f / %.1f = %.1f",num1, num2, num1/num2);

break;

default:

/* If operator is other than +, -, * or /, error message is shown */

printf("Error! operator is not correct");

break;

}

return 0;

}

Enter operator either + or - or * or divide : -
Enter two operands: 3.4
8.4
3.4 - 8.4 = -5.0

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