home > topics > c / c++ > questions > modulus with double variables + Ask a Question. How can I do the modulo operation without using % or using the % and double types. In C, abs is only declared in (and operates on int values). In mathematics, modular arithmetic is a system of arithmetic for integers, where numbers "wrap around" when reaching a certain value, called the modulus.The modern approach to modular arithmetic was developed by Carl Friedrich Gauss in his book Disquisitiones Arithmeticae, published in 1801.. A familiar use of modular arithmetic … I hope this … 5 modulo 3 When 5 is divided by 3, we have 2 left over—only one 3 can be part of 5. What does the mathematical symbol with an underline below the variable name mean? Thanks, João Pedro For example, // ex = 325 X (10 ^ 25) double ex = 325E25; C++ outputs exponential numbers and very large numbers in a format called the scientific format. Assigning an integer to float and comparison in C/C++ … Post your question to a community of 466,426 developers. What is the difference between single and double modulus signs. 1. That is, the double implementation is exactly the same as the float, with no gain in precision. 5. Do they both mean magnitude? Hello NG, i need to calculate the modulus with double precisson typed variables. fmod is the standard C function for handling floating-point modulus; I imagine your source was saying that Java handles floating-point modulus the same as C’s fmod function. 7 % 3 should return 1, since 7/3 = 2, with a remainder of 1, making 1 the modulo. The modulus operator is useful in a variety of circumstances. The modulo of "a" divided by "b" is equal to the remainder after the division. Sample Input 1: ... Get two integers a and b (using scanf statement) divide a by b, then store quotient in c (c=a%b, Note "%" operator gives remainder) print the value of c (using printf statement) Previous … The modulo result is 2. In mathematics, the modulo is the remainder or the number that’s left after a number is divided by another value. This my be why the 3 is returned. (Invalid operands to binary %). Get two integer numbers, divide both the integers and display the remainder. Modulus of two float or double numbers using C; Checking if a double (or float) is NaN in C++; C++ Program to find size of int, float, double and char in Your System; Get the absolute value of float, int, double and long in Java; When can a double-type be preferred over float-type in Java? Modulo is also referred to as ‘mod.’ The standard format for mod is: a mod n Where a is the value that is divided by n. For example, you’re calculating 15 mod 4. It's quick & easy. As mentioned above, float and double can also be used to represent exponential numbers. Double precision floating point number. What does $ \mathbb{E}^n $ mean? The example you provided, 3 % 7 is literally saying "the remainder when 3 is divided by 7", which is expressed incorrectly. The variable ex will be outputted in this format by default since it is a very large … 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. C Program to find modulus of two numbers. Since C++11, additional overloads are provided in this header ( ) for the integral types : These overloads effectively cast x to a double before calculations (defined for T being any integral type ). using System; class Program { static void Main() {// When 5 is divided by 3, the remainder is 2. Modulus with double variables. What is the meaning of having ^ over a vector name? double a, b, c; a = (b % c); But Gcc doesn't allow me to do it, because it says % operation can't be used with double. In Java you can use the % operator on doubles the same as on integers: int x = 5 % 3; // x = 2 double y = .5 % .3; // y = .2 Related. When you divide 15 by 4, there’s a … 1. 0. C# program that uses modulo operator. Peter Pippinger. On the Uno and other ATMEGA based boards, this occupies 4 bytes.