hi i am a mathemagician and vaguely experienced programmer of many years and i still get confused about which goes where whenever i use the modulo operator (%). i'm always dropping into the console or REPL to remind myself.
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no, but
@omarieclaire was just asking this to me and I had no idea how negatives work with modulo!
Basically there are two reasonable interpretations of a%b for negative a, though I always want the one which Java doesn't use, and I've forgotten why the one it does use is reasonable.
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Option 1: (-a)%b = -(a%b) Option 2: (a + kb)%b = a%b for all integers, a, b, k I always want option 2. For example, I want (-1)%5 = 4.
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