Difference between revisions of "Derivative of versine"
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Revision as of 02:33, 5 January 2017
Theorem
The following formula holds: $$\dfrac{\mathrm{d}}{\mathrm{d}z} \mathrm{versin}(z) = \sin(z),$$ where $\mathrm{versin}$ denotes versine and $\sin$ denotes sine.
