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Topic: even or odd (Read 629 times) |
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pokemon#1
 
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even or odd
« on: Jul 4th, 2003, 5:40am » |
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I need help using proce55ing to detect if an increasing integer is even or odd. Can anyone help?
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benelek
 
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Re: even or odd
« Reply #2 on: Jul 4th, 2003, 3:29pm » |
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you've already got an answer there, but here's a cute little piece of maths i learnt during my days in highschool:
(-1)^num
if num is even, 1 will result, and if num is odd, -1 will result. so you can use it as a coefficient where a number needs to be greater than zero if it is even, and smaller than zero if odd.
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v3ga
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Re: even or odd
« Reply #3 on: Jul 4th, 2003, 6:04pm » |
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This one should work too :
(n & 0x01) == true if n is odd.
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| « Last Edit: Jul 4th, 2003, 6:07pm by v3ga » |
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http://v3ga.net
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pokemon#1
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Re: even or odd
« Reply #4 on: Jul 4th, 2003, 9:37pm » |
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Thanks so much. I will post my applet here soon when it is done. All of your ways work, even though I used scloopy's way because it was the first posted.
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