Arithmetic Expression in C

Arithmetic Expression in C

An arithmetic expression in C is composed of operators and operands. Operators act on operands to a result. Commonly use arithmetic operators are +, -, *, / and %

The plus sign (+) is used to add two values, the minus sign (-) to subtract one value from another, the asterisk(*) to multiply two values, the division (/) to divide a value, and the modulus (%) to obtain the remainder of integer division. These are known as binary operators since they operate on two values or variables.

Following are examples of arithmetic expressions :

result = x – y;
total = principle + interest;
numsquare = x * x;
celcius = (fahrenheit – 32) / 1.8

Program

#include <stdio.h>

int main (void)
{
      int a = 100;
      int b = 2;
      int c = 25;
      int d = 4;
      int result;

      result = a - b;       // subtraction
      printf ("a - b = %i\n", result);

      result = b * c;       // multiplication
      printf ("b * c = %i\n", result);

      result = a / c;       // division
      printf ("a / c = %i\n", result);

      result = a + b * c;   // precedence
      printf ("a + b * c = %i\n", result);

      printf ("a * b + c * d = %i\n", a * b + c * d);

      return 0;
}

Output

a - b = 98
b * c = 50
a / c = 4
a + b * c = 150
a * b + c * d = 300

Arithmetic expression Evaluation

Addition (+), Subtraction(-), Multiplication(*), Division(/), Modulus(%), Increment(++) and Decrement(–) operators are the “Arithmetic expressions”. These operators work in between operands. like A+B, A-B, A–, A++, etc. While we perform the operation with these operators based on specified precedence order as like below

A+B*C/D-E%F

Arithmetic Expression evaluation order

Program

#include <stdio.h>
int main()
{
//declaring variables
int a,b,result_art_eval;                               //Asking the user to enter 2 numbers

printf("Enter 2 numbers for Arithmetic evaluation operation\n");  //Storing 2 numbers in varaibles a and b

scanf("%d\n%d",&a,&b);                                //Arithmetic evaluation operations and its result displaying

result_art_eval = a+b*a/b-a%b;
printf("================ARITHMETIC EXPRESSION EVALUATION==============\n");
printf("Arithmetic expression evaluation of %d and %d is = %d \n",a,b,result_art_eval);
return 0;
}

Output

Enter 2 numbers for Arithmetic evaluation operation

10

20

================ARITHMETIC EXPRESSION EVALUATION==============

Arithmetic expression evaluation of 10 and 20 is = 30

Also, read the C Storage Classes