Subject:
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some 'puter/math help please
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Fri, 23 Mar 2007 13:20:55 GMT
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Viewed:
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1477 times
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here's the scenario as best I can describe--
x and y co-ordinates
line segment starts at (0,0), goes out to whatever--let's say (10,15)
I want to make a dot follow the line segment from (10,15) down to (0,0)
So the dot startes at (10,15), then moves 1 unit along the line segment, and so
on, until the dot reaches (0,0)
all in computer-ese
so basically, I think I'm asking for the 'computer' mathematical equation to
derive the (x,y) for point (P) along the line segment (0,0)(10,15)
My math is extremely fuzzy to begin with, and it was 20+ years ago...
Thanks for any help
Dave K
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Message has 1 Reply:
 | | Re: some 'puter/math help please
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| (...) The points on the line take the form y = mx + b, where b is the intercept with the y-axis and m is the slope. For the problem as you describe it, b is 0 since the line crosses the y-axis at zero, and m = 1.5 or 15/10 since the slope is the (...) (18 years ago, 23-Mar-07, to lugnet.org.ca.rtltoronto)
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