secd

Arguments

x

Real array.

y

Real array.

Description

The entries of y are thesecant 1/cos of the entries of x given in degree. The results are real and in ]-%inf -1] U [1 %inf[. For entries equal to n*180 with n integer, the result is exactly -1 or +1. For entries equal to n*90with n integer and odd the result is infinite(or an error depending on ieee mode).

Examples

secd(90)
sec(%pi/2)

See Also

• cosd — element-wise cosine function, argument in degree
• sec — Compute the element-wise secant of the argument.

Authors

• Serge Steer, INRIA