isnumber

Version 1.0.0.0 (1.21 KB) by Ben Barrowes
Similar to isletter for numbers.
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Updated 24 Jun 2005

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Similar to isletter. Returns a vector the same length as the input string but with a true for each character that is a number and false otherwise.

The test here is for the ascii character set, so char(48:57) qualifies.

Cite As

Ben Barrowes (2026). isnumber (https://www.mathworks.com/matlabcentral/fileexchange/7898-isnumber), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R14
Compatible with any release
Platform Compatibility
Windows macOS Linux
Categories
Find more on Characters and Strings in Help Center and MATLAB Answers
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Version Published Release Notes
1.0.0.0