Scilab Website | Contribute with GitLab | Mailing list archives | ATOMS toolboxes
Scilab Online Help
5.5.2 - 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 This page might be outdated.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 > Complex > isreal

isreal

check if a variable has real or complex entries

Calling Sequence

t=isreal(x)
t=isreal(x,eps)

Arguments

x

vector or matrix with floating point entries or coefficients

t

a boolean

Description

isreal(x) returns true if x is stored as a real variable and false if x is stored with an (eventually zero) imaginary part.

isreal(x,eps) returns true if x is stored as a real variable or if maximum absolute value of imaginary floating points is less or equal than eps.

Examples

isreal([1 2])
isreal(1+0*%i)
isreal(1+0*%i,0)
isreal(1+%s)
isreal(sprand(3,3,0.1))
Report an issue
<< imult Complex real >>

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:
Wed Apr 01 10:13:52 CEST 2015