rem = a-(a/b)*b; Here, a and b are the input numbers. Now in some cases you absolutely have to use the modulus operator. Calculation. For example, 7 / 4 = 1 remainder 3. The modulus operator - or more precisely, the modulo operation - is a way to determine the remainder of a division operation. As another example, 25 / 7 = 3 remainder 4, thus 25 % 7 = 4. The modulus operator is useful in a variety of circumstances. Formulas to get the remainder, 1) Using modulus (%) operator . The operator takes two operands and returns the reminder after performing division of dividend by divisor. If yes, then the condition becomes true. Syntax of C++ Modulus Operator. rem = a%b; 2) Without using modulus (%) operator . Well a little thought shows that C = A % B is equivalent to C = A – B * (A / B). The Arithmetic operators are some of the C Programming Operator, which are used to perform arithmetic operations includes operators like Addition, Subtraction, Multiplication, Division and Modulus. Notes. Given two positive numbers a and n, a modulo n (abbreviated as a mod n) is the remainder of the Euclidean division of a by n, where a is the dividend and n is the divisor. In this tutorial, we shall learn how to use Arithmetic Modulus Operator with values of different datatypes using example programs. Instead of returning the result of the division, the modulo operation returns the whole number remainder. The modulus operator. % is called the modulo operation. In your example: 5 divided by 7 gives 0 but it remains 5 (5 % 7 == 5). In other words the modulus operator is functionally equivalent to three operations. Modulo can be easily translated into a bitwise AND if the divisor is a power of two. C language is rich in built-in operators and provides the following types of operators − == Checks if the values of two operands are equal or not. All these Arithmetic operators in C are binary operators … To get the remainder we will not use the modulus (%) operator. For example, the expression a = b = c is parsed as a = (b = c), and not as (a = b) = c because of right-to-left associativity. The Modulus is the remainder of the euclidean division of one number by another. Consider, for instance, the following C code: int remainder = value % 1024; It can be translated into: int remainder = value & 0x3FF; In general, if divisor is a power n of two, the modulo operation can be translated to a bitwise AND with divisor-1. In computing, the modulo operation returns the remainder or signed remainder of a division, after one number is divided by another (called the modulus of the operation).. As a result it’s hardly surprising that code that uses the modulus operator can take a long time to execute. Modulus is also called modular division or modulo. An operator is a symbol that tells the compiler to perform specific mathematical or logical functions. Some examples may help illustrate this, as it’s not necessarily intuitive the first time you encounter it: Operators that are in the same cell (there may be several rows of operators listed in a cell) are evaluated with the same precedence, in the given direction. Therefore, 7 % 4 = 3. For instance, 9 divided by 4 equals 2 but it remains 1. The modulus operator (also informally known as the remainder operator) is an operator that returns the remainder after doing an integer division. Modulo (‘%’) (often referred as modulus operator) is an arithmetic operator in all programming languages (C, C++, Python etc etc), that finds the remainder when two numbers are divided. C program to find the remainder of two numbers without using modulus (%) operator  The modulo operation can be calculated using this equation: Modulus only works with integer operands. Modulus is the remainder when two numbers are divided. Here, 9 / 4 = 2 and 9 % 4 = 1. 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