How Do You Calculate Negative Modulo

Adding a thumb rule to all the answers above: negative number modulo k = k minus positive number modulo k. To find (−n)%k just find k−(n%k). Ex: (−144)%5=5−(144%5)=5−(4)=1.

How do you solve a negative modulo?

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.

Can you have negative modulo?

Can a modulus be negative? % 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 % .