Scilab Website | Contribute with GitLab | Mailing list archives | ATOMS toolboxes
Scilab Online Help
6.1.0 - English

Change language to:
Français - 日本語 - Português - Русский

Please note that the recommended version of Scilab is 2024.0.0. This page might be outdated.
See the recommended documentation of this function

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 ]-∞,-1] ∪ [1,∞[.

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.

Report an issue
<< csgn Trigonometry secd >>

Copyright (c) 2022-2023 (Dassault Systèmes)
Copyright (c) 2017-2022 (ESI Group)
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Tue Feb 25 08:49:19 CET 2020