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Date: 28-4-2019
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Date: 13-9-2019
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Date: 13-10-2019
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The versine, also known as the "versed sine," is a little-used trigonometric function defined by
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(1) |
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(2) |
where is the sine and
is the cosine.
The versine can be extended to the complex plane as illustrated above.
Its derivative is given by
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(3) |
and its indefinite integral by
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(4) |
REFERENCES:
Abramowitz, M. and Stegun, I. A. (Eds.). Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, p. 78, 1972.
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