Computer Science Canada mod function |
| Author: | mercuryy [ Mon Jun 20, 2005 4:03 pm ] |
| Post subject: | mod function |
I am a bit confused about how to predict the output using the mod function for negative number. for example. How do you calculate -2 mod 5 -5 mod 2 2 mod -5 etc. in turing without actually running the program?[/b] |
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| Author: | Delos [ Mon Jun 20, 2005 6:20 pm ] |
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It is no different from looking at a positive number. Since 'mod' returns the remainder of a division, say you test 5 mod 2. You'll get 1. -5 mod 2? You'll still get 1. Don't think about it too hard - but suffice it to say that "remainder of negative one" and "remainder of positive one" still both mean that there 1 remaining. |
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| Author: | mercuryy [ Mon Jun 20, 2005 6:36 pm ] |
| Post subject: | |
what about -2 mod 5 and 2 mod 5. -2 mod 5 is obviously 2, so why does -2 mod 5 equals to 3? |
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| Author: | MysticVegeta [ Mon Jun 20, 2005 6:49 pm ] | ||
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Let me simplify it down for you, mod really is ->
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