In case this is not legally possible: Lmov grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Original upload log
The original description page was here. All following user names refer to en.wikibooks.
2004-07-05 20:06 Lmov 250×250× (7731 bytes) added white background since ie doesn't like transparent pngs
2004-07-05 07:47 Lmov 250×250× (6330 bytes) cot unit circle created by me under the public domain
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{{BotMoveToCommons|en.wikibooks|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|cot unit circle created by me under the public domain}} |Source=Transferred from [http://en.wikibooks.o