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Date: 21-9-2018
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Date: 20-8-2018
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Date: 3-6-2019
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The exsecant is a little-used trigonometric function defined by
(1) |
where is the secant.
The exsecant can be extended to the complex plane as illustrated above.
Its derivative is given by
(2) |
and its indefinite integral by
(3) |
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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