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Aide Scilab >> Fonctions Elémentaires > Trigonométrie > acscd

acscd

computes the element-wise inverse cosecant of the argument, results in degree.

Calling Sequence

y = acscd(x)

Arguments

x

Real array.

y

Real or complex array.

Description

Computes the element-wise inverse cosecant of the argument an return the results in degree. For real argument with absolute value greater than 1 the result is real.

Examples

x=linspace(1,20,200);
x=[-x($:-1:1) %nan x];
plot(x,acscd(x))

See Also

  • cscd — cosécante des éléments de l'argument donnés en degrés
  • acsc — computes the element-wise inverse cosecant of the argument.

References

  • Kahan, W., "Branch cuts for complex elementary functions, or, Much ado about nothing's sign bit", Proceedings of the joing IMA/SIAM conference on The State of the Art in Numerical Analysis, University of Birmingham, A. Iserles and M.J.D. Powell, eds, Clarendon Press, Oxford, 1987, 165-210.

Authors

  • Serge Steer, INRIA
<< acsc Trigonométrie acsch >>

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Last updated:
Thu May 12 11:44:50 CEST 2011