BUILT-IN MATHEMATICA SYMBOL

VectorQ

VectorQ[expr]
gives True if expr is a list or a one-dimensional SparseArray object, none of whose elements are themselves lists, and gives False otherwise.

VectorQ[expr, test]
gives True only if test yields True when applied to each of the elements in expr.

Details Details

VectorQ[expr, NumberQ] tests whether expr is a vector of numbers.

Examples Examples open all close all

Basic Examples (3)Basic Examples (3)

Test whether an object is a vector:

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These are not vectors:

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Use specific tests to generalize or specialize:

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Scope (3)Scope (3)

Applications (1)Applications (1)

Properties & Relations (2)Properties & Relations (2)

Top

Tutorials Tutorials

Putting Constraints on Patterns
Scalars, Vectors, and Matrices

Related Guides Related Guides

Elements of Lists
Operations on Vectors
Testing Expressions

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