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Aide de Scilab >> Fonctions Elémentaires > Matrice - façonnage > is<forme> > isscalar

isscalar

check if a variable is a scalar.

Syntax

t=isscalar(x)

Arguments

x

scalar,vector, matrix, hypermatrix, list, array of structures or cells

t

a boolean

Description

isscalar(x) returns true if x is a scalar (if size(x) is 1). Note that isscalar([]) returns false.

Examples

isscalar(ones(10,10))
isscalar(1)
isscalar("s")
s = struct();
isscalar(s) // Empty structure
clear s
s.a = %z;
s.b = 2;
isscalar(s) // Scalar structure
clear s
s(1,2).a = 3;
s(1,3).b = %z;
isscalar(s) // Row array of structures
clear s
s(2,1).a = "w";
s(3,1).b = %t;
isscalar(s) // Column array of structures

See also

  • ismatrix — checks if an object is a non-empty 1D or 2D matrix or array
  • isrow — check if a variable is a row
  • iscolumn — check if a variable is a column
  • issquare — check if a variable is a square matrix
  • isempty — check if a variable is an empty matrix or an empty list

History

VersionDescription
5.5.0 Function isscalar introduced.
Report an issue
<< isrow is<forme> issquare >>

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Last updated:
Tue Feb 25 08:50:19 CET 2020