secd

Arguments

x

a real array.

y

a real array.

Description

The entries of y are the secant 1/cos(x) of the entries of x given in degree. The results are real and in ]-∞, -1] ∪ [1, ∞[. 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 — computes the element-wise secant of the argument