Trig and hyperbolic expressions: Page History
Last updates: 16 June 2011
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- 2 March 2010
2 March 2010
- Existing 091102trigIds page converted to content/history format.
- New definitions of sine and cosine in terms of exponentials. Organised into Theorem/Proof format.
- Altered by Arun Ram.
16 June 2011
- New definitions of sinh and cosh in terms of exponentials. Remainder reedited and organised into Theorem/Proof format.
- Altered by Nick Stevenson.
- Converted to html5. Some rearranging and code cleaning.-- Arun Ram.