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Old 04-13-2013, 09:02 PM   #522 (permalink)
freebeard
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Maybe it's time to take all the prior files I've saved and put them in a folder called "old".

I'd like to update the figure in the middle of Permalink 514.

Can anyone populate an Excel spreadsheet with the sgtlethargic/3-Wheeler profile in section and the squircle in cross-section?
Quote:
( x - a )^4 + ( y - b )^4 = r^4
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