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04-04-2005, 06:03 AM
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#1 |
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Member (10 bit)
Join Date: Mar 2004
Location: Essex, UK
Posts: 982
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I need some maths help guys
Hiya guys,
Little maths question for ya, if anyone can work this out then they deserve a medal, either that or it's just me being really thick again  A program i'm working on needs an analogue gauge and a digital representation of the gauges reading (which is gonna be in a text box under the gauge). The number being inputted ranges from 0-255 and if compared to the actual then input of 0 would give an output of -20, an input of 255 would give an output of +20 and an input of 126.5 would give an output of 0. I think i've explained that as best i can. so input of 0 = screen reading of -20 and input of 255 = screen reading of +20. Any ideas on the maths involved?
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04-04-2005, 07:05 AM
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#2 |
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Staff
Premium Member
Join Date: Sep 2004
Location: Cardiff, Wales. UK
Posts: 6,105
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Where 0 = -20 and 255 = +20 every increment of 1 in the range 0 to 255 is equivalent to an increase in value of 0.15686 in the range -20 to +20
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04-04-2005, 07:17 AM
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#3 |
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Member (9 bit)
Join Date: Nov 2004
Location: Flint, MI
Posts: 256
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Yes, rjfvillarosa is right. Each one between 0-255 would represent .15686 of whatever. By the time that you reached 255 it would virtually come out to 40, or the spread of -20 to 20.
^fo |
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