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Topic: ln/log (Read 424 times) |
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JohnG
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ln/log
« on: Oct 1st, 2003, 6:05am » |
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Is there any logarithm function in proce55ing at all?
I've not been able to find one in the reference, or find that there happens to be an unlisted one, and I was wondering if one is going to be included?
Or failing that, anyone have a fairly efficient log method? I'm currently more interested in it just being fairly accurate, but pretty quick, as it needs to run for each pixel on screen.
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fry
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Re: ln/log
« Reply #1 on: Oct 1st, 2003, 7:02am » |
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you can use java's Math.log():
float theLog = float(Math.log(someNumber));
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JohnG
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Re: ln/log
« Reply #2 on: Oct 2nd, 2003, 11:10am » |
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on Oct 1st, 2003, 7:02am, fry wrote:you can use java's Math.log():
float theLog = float(Math.log(someNumber)); |
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That's just what I was looking for, thanks.
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Euskadi
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Re: ln/log
« Reply #3 on: Dec 10th, 2003, 3:17am » |
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how about e? it would be nice to have constant e()
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benelek
 
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Re: ln/log
« Reply #4 on: Dec 10th, 2003, 7:25am » |
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float e = (float)Math.E;
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Euskadi
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Re: ln/log
« Reply #5 on: Dec 10th, 2003, 10:59pm » |
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Thanks! I feel silly for not looking there first given the discussion above. I'm going to have to put a sticky on my monitor reminding that when all else fails check Java.
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