What happens if you modulo a negative number?
What happens if you modulo a negative number?
The modulo operator returns the remainder of a division. 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. Subtracting this from a yields the remainder of the division and by that the modulo.
Can you modulo a negative number Java?
Both remainder and modulo are two similar operations; they act the same when the numbers are positive but much differently when the numbers are negative. In Java, we can use Math. floorMod() to describe a modulo (or modulus) operation and % operator for the remainder operation.
How do you change a negative modulo to a positive?
All this assumes that the divisor is always positive. You can add some multiple of 5 to the negative number first, to convert it to a positive number with the same value mod 5.
Does modulo work with negative numbers?
Modulo and remainder operators differ with respect to negative values. With a remainder operator, the sign of the result is the same as the sign of the dividend (numerator) while with a modulo operator the sign of the result is the same as the divisor (denominator).
Can a remainder be negative?
The remainder operator can be used with negative integers. The rule is: Perform the operation as if both operands were positive. If the left operand is negative, then make the result negative.
Can you have a negative remainder?
Can modulo return negative?
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 do you do when you have a negative remainder?
Just like in multiplication, when one but not both numbers are negative, the answer will be negative. If both numbers are negative, the answer will be positive. In number theory, remainders are always positive. -11 divided by 5 equals -2 remainder 1.