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Can Mod return negative value?
These functions give the same values for positive arguments, but the modulus always returns positive results for negative input, whereas the remainder may give negative results.
What does modulo return with a negative number?
The modulo operator returns the remainder of a division. But things get a little more tricky when you throw negative numbers into the mix. Doing an integer division and then multiplying it again means finding the biggest number smaller than a that is dividable by n without a remainder.
How do you handle negative mods?
The modulus of a negative number is found by ignoring the minus sign. The modulus of a number is denoted by writing vertical lines around the number. Note also that the modulus of a negative number can be found by multiplying it by −1 since, for example, −(−8) = 8. Exercise 1.
Why does math-mod in Java produce negative numbers?
The problem here is that in Python the % operator returns the modulus and in Java it returns the remainder. These functions give the same values for positive arguments, but the modulus always returns positive results for negative input, whereas the remainder may give negative results. There’s some more information about it in this question.
What does the modulo of negative numbers mean?
Modulo of Negative Numbers. The modulo or often referred to as mod represents the remainder of a division. In 1801 Gauss published a book covering modular arithmetics. Later a widely accepted definition was given by Donald Knuth. Doing an integer division and then multiplying it again means finding the biggest number smaller than a
Can a modulo op be negative after Division?
% can be negative as it is the remainder operator, the remainder after division, not after Euclidean_division. Since C99 the result may be 0, negative or positive. The modulo OP wanted is a classic Euclidean modulo, not %.
How to do a math mod in Java?
By comparison the Pascal language provides two operators; REM takes the sign of the numerator ( x REM y is x – (x DIV y) * y where x DIV y is TRUNC (x / y)) and MOD requires a positive denominator and returns a positive result. Not the answer you’re looking for? Browse other questions tagged java math mod or ask your own question.