WeChat ID
aaronpk_tv
Sunday, October 2, 2011
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Portland, Oregon • Sun, October 2, 2011 11:07amGetting an early start -
radical al-Jabraist
https://twitter.com/mathpunk
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Oct 2
@aaronpk I was thinking about your vector problem. Perhaps you could project AC onto AB http://en.wikipedia.org/wiki/Vector_projection to find your altitude's 2nd pt
@mathpunk Interesting... what do you think of this solution? http://www.flickr.com/photos/aaronpk/6199216489/ -
radical al-Jabraist
https://twitter.com/mathpunk
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Oct 2
@aaronpk I think that looks good. I'm wondering if you can get hosed if your altitude from C does not intersect AB, for example.
@mathpunk Actually I just realized I'm not looking for the distance AD, I actually want CD. More sketches coming...
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Solving a Triangle (www.teacherschoice.com.au)
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radical al-Jabraist
https://twitter.com/mathpunk
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Oct 2
@aaronpk If you project AC to AB, you should get D, and so your desired distance is |C-D|.
@mathpunk ok here's my actual problem: http://www.flickr.com/photos/aaronpk/6204749156/
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radical al-Jabraist
https://twitter.com/mathpunk
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Oct 2
@christianp See, I keep thinking the circle is unnecessary, and that @aaronpk should just find e from A, B, C. Compare it with r later.
@mathpunk Yep my thoughts exactly. The circle is part of my original problem definition but is not needed to get e.
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radical al-Jabraist
https://twitter.com/mathpunk
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Oct 2
@christianp See, I keep thinking the circle is unnecessary, and that @aaronpk should just find e from A, B, C. Compare it with r later.
@mathpunk Alright here is my updated solution http://www.flickr.com/photos/aaronpk/6204262559/
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@christianp @mathpunk. Yes. Whether the line (segment) intersects the circle.
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Christian Lawson-Perfect
https://twitter.com/christianp
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Oct 2
@aaronpk @mathpunk and I think I've got some code somewhere for the same with halfspheres (great circles) if that's what you're really doing
@christianp @mathpunk Yea it's actually on a sphere, so if there's a better spherical solution I'm all ears! -
Kryonet - TCP and UDP client/server library for Java (code.google.com)
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Well that was a rather large rabbit hole...
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@kirillzubovsky ...or you will get bought very quickly!
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Portland, Oregon • Sun, October 2, 2011 9:07pmYep still here
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yo dawg, i heard you like servers in your server's servers, so i put a server in your server's server so you can have horrible i/o
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Christian Lawson-Perfect
https://twitter.com/christianp
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Oct 2
@aaronpk too much to explain in a tweet, so I've written some notes: http://takenot.es/?line%20circle%20sphere%20intersect, can expand if necessary
@christianp Wow, awesome... I think that might be a better way of approaching it. Would appreciate more details!
