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Scilab Help >> Elementary Functions > Trigonometry > sec

sec

computes the element-wise secant of the argument

Syntax

y = sec(x)

Arguments

x

a real or complex array.

y

a real or complex array.

Description

The sec function computes the element-wise secant of the argument. The secant is a periodic function defined as 1/\cos(x). For real data the results are real and in ]-\infty -1] \cup [1 \infty[.

Sample

Examples

x=[0 %pi/3 2*%pi/3 %pi/4 3*%pi/4 %pi/6 5*%pi/6 %pi];
sec(x)
x=linspace(-%pi,%pi,100)
plot(x,sec(x))

See also

  • secd — computes the element-wise secant of the argument given in degree
  • cos — cosine function

Used Functions

This function uses the cos function.

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Last updated:
Thu Feb 14 14:57:13 CET 2019