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In a rectangular billiard table whose sides are integers and coprime, a ball hit from a corner at a 45 degree angle will end up in a corner after LENGTH+WIDTH-2 rebounds.
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Mike 'Shooter' Angelo Dec 20
Replying to @fermatslibrary
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Dån Smith Dec 20
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John Carlos Baez Dec 20
Replying to @fermatslibrary
Nice! I was wondering about that "-2". Not counting the two corners as rebounds is what causes the "-2".
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Akiva Weinberger Dec 20
The two worst problems in programming are off-by-one errors
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Piyush Ranjan Dec 20
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William Rose Dec 20
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So you’re just repeating yourself from 6 months ago? Adding in “coprime” now to fix your error? Still misleading/wrong due to the vagueness of “whose sides are integers”. Integers of what?
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Andrew Ryanair Dec 20
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David Crowley 💡🐺🚀 Dec 20
Replying to @fermatslibrary
This works for lasers and mirrors but not so well with billiard balls with mass on a table with friction
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1:1 miniature Dec 20
Just hit the ball harder.
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