[Coco] Project Euler and the Coco
flexser at fiu.edu
Sat Nov 15 21:29:08 EST 2008
Ah, an 8-15-17 Pythagorean triangle scaled up 25 times. So, a shortcut approach
would have been to sift through small Pythagorean triangles looking for one
whose perimeter went into 1000 evenly, and scale it up appropriately (40 x 25 =
1000). One formula for generating Pythagorean triangles is to use as sides
2XY, (X^2-Y^2), and (X^2+Y^2), where X and Y can be any two integers with X>Y.
That gives you the 8-15-17 triangle when X=4 and Y=1, or the 200-375-425 one
when X=20 and Y=5.
On Sun, 16 Nov 2008, Mark McDougall wrote:
> Arthur Flexser wrote:
> > (By the way, what ARE those values?)
> 200, 375 & 425
> | Mark McDougall | "Electrical Engineers do it
> | <http://members.iinet.net.au/~msmcdoug> | with less resistance!"
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