The operator takes two operands and returns the reminder after performing division of dividend by divisor. Therefore, 7 % 4 = 3. All these Arithmetic operators in C are binary operators â¦ An operator is a symbol that tells the compiler to perform specific mathematical or logical functions. 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. As another example, 25 / 7 = 3 remainder 4, thus 25 % 7 = 4. Modulus is also called modular division or modulo. % is called the modulo operation. 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. Calculation. For instance, 9 divided by 4 equals 2 but it remains 1. If yes, then the condition becomes true. The modulus operator. The modulus operator (also informally known as the remainder operator) is an operator that returns the remainder after doing an integer division. rem = a-(a/b)*b; Here, a and b are the input numbers. The modulo operation can be calculated using this equation: It is commonly used to take a randomly generated number and reduce that number to a random number on a smaller range, and it can also quickly tell you if one number is a factor of another. Now in some cases you absolutely have to use the modulus operator. The modulus operator - or more precisely, the modulo operation - is a way to determine the remainder of a division operation. In your example: 5 divided by 7 gives 0 but it remains 5 (5 % 7 == 5). In this tutorial, we shall learn how to use Arithmetic Modulus Operator with values of different datatypes using example programs. rem = a%b; 2) Without using modulus (%) operator . The Modulus is the remainder of the euclidean division of one number by another. For example, 7 / 4 = 1 remainder 3. The modulus operator is useful in a variety of circumstances. 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. As a result itâs hardly surprising that code that uses the modulus operator can take a long time to execute. 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 â == Checks if the values of two operands are equal or not. Formulas to get the remainder, 1) Using modulus (%) operator . Instead of returning the result of the division, the modulo operation returns the whole number remainder. Here, 9 / 4 = 2 and 9 % 4 = 1. Modulus only works with integer operands. Some examples may help illustrate this, as itâs not necessarily intuitive the first time you encounter it: To get the remainder we will not use the modulus (%) operator. Syntax of C++ Modulus Operator. Modulo (â%â) (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. 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. 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. 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