Mod and remainder are not the same

Re:Mod and remainder are not the same by antoineMoPa on Thursday August 23, 2018 @12:10PM (#17828429)

Yeah I remember this notation completely messing up with my brain back in my discrete math class.

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Re:Mod and remainder are not the same by 0x7f800000 on Thursday August 23, 2018 @12:20PM (#17828515)

Clock arithmetic.

Modulo 4: a clock with only four evenly-spaced marks on it.

17 is congruent to 1 (modulo 4) means:

Starting at the top of the clock, go clockwise one mark.

Starting at the top of the clock, go clockwise seventeen marks.

You'll end up at the same position.

That's congruence.

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