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DarkBASIC Professional Discussion / some math help. please

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Visigoth
21
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Joined: 8th Jan 2005
Location: Bakersfield, California
Posted: 26th Apr 2010 12:25 Edited at: 26th Apr 2010 13:37
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sorry to ask, I'm having a brain fart. I've done this before, but, can't remember how or what the equation is called.
Anyway, say I have a range of numbers, from 0 to 65535, and I want to convert them to normals type numbers, -1 to +1.
Can anyone help me with a formula to convert it?

ok, I think I got it figured it out
(value - (.5 * maxrange)) / (.5 * maxrange)
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Kira Vakaan
17
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Joined: 1st Dec 2008
Location: MI, United States
Posted: 26th Apr 2010 20:18
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or:
((2*Value)/MaxRange)-0.5

or:
(Value/(0.5*MaxRange)-0.5 if you can't store numbers greater than 65535

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Visigoth
21
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Location: Bakersfield, California
Posted: 26th Apr 2010 21:16
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@kira
I like yours better, but its returning -.5 to 1.5.
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Kira Vakaan
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Location: MI, United States
Posted: 26th Apr 2010 21:33
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*facepalm*

((2.0*Value)/MaxRange)-1.0

Sorry

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