Image:Weierstrass substitution.png

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Tangent half-angle formula, or the Method of Last Resort (Weierstrass substitution)

t=\tan\left({\varphi\over2}\right)
Description

Tangent half-angle formula
Source

Done in Mathematica by Fibonacci
Date

December 10, 2005
Author

Fibonacci
Permission
(Reusing this image)

Creative Commons Attribution ShareAlike 2.0 License

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Creative Commons License
Creative Commons Attribution iconCreative Commons Share Alike icon		 This file is licensed under Creative Commons Attribution ShareAlike 2.0 License (cc-by-sa-2.0). In short: you are free to share and make derivative works of the file under the conditions that you appropriately attribute it, and that you distribute it under this or a similar cc-by-sa license.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeDimensionsUserComment
current05:59, 11 December 20051,600×800 (14 KB)Fibonacci (Black, not grey, letters.)
05:55, 11 December 20051,600×800 (14 KB)Fibonacci (Letters for geometric deduction of the tangent half-angle formulae.)
00:43, 11 December 20051,600×800 (10 KB)Fibonacci (Okay, now it DOES look like a "t"...)
00:36, 11 December 20051,600×800 (10 KB)Fibonacci (Thicker lines, better visibility.)
00:21, 11 December 20051,600×800 (10 KB)Fibonacci (w:Tangent half-angle formula, or the Method of Last Resort (Weierstrass substitution) :<math>t=\tan({\varphi\over2})</math> {{Information| |Description = Tangent half-angle formula |Source = Done in Mathematica by [[User:Fibonacci)
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