C Programming

ARITHMETIC OPERATORS
The symbols of the arithmetic operators are:-

Operation	Operator	Comment	Value of Sum before	Value of sum after
Multiply	*	sum = sum * 2;	4	8
Divide	/	sum = sum / 2;	4	2
Addition	+	sum = sum + 2;	4	6
Subtraction	-	sum = sum -2;	4	2
Increment	++	++sum;	4	5
Decrement	--	--sum;	4	3
Modulus	%	sum = sum % 3;	4	1

The following code fragment adds the variables loop and count together, leaving the result in the variable sum

        sum = loop + count;

Note: If the modulus % sign is needed to be displayed as part of a text string, use two, ie %%


	#include <stdio.h>

	main()
	{
		int sum = 50;
		float modulus;
    
    		modulus = sum % 10;
		printf("The %% of %d by 10 is %f\n", sum, modulus);
	}


	Sample Program Output
	The % of 50 by 10 is 0.000000

CLASS EXERCISE C5
What does the following change do to the printed output of the previous program?


	printf("The %% of %d by 10 is %.2f\n", sum, modulus);

Answers