Secant

The function defined by , where is the Cosine. The Maclaurin Series of the secant is

where is an Euler Number.

See also Alternating Permutation, Cosecant, Cosine, Euler Number, Exsecant, Inverse Secant

References

Abramowitz, M. and Stegun, C. A. (Eds.). Circular Functions.'' §4.3 in Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, pp. 71-79, 1972.

Spanier, J. and Oldham, K. B. The Secant and Cosecant Functions.'' Ch. 33 in An Atlas of Functions. Washington, DC: Hemisphere, pp. 311-318, 1987.

© 1996-9 Eric W. Weisstein
1999-05-26