Test2::Compare::Float(3pm) Perl Programmers Reference Guide Test2::Compare::Float(3pm)

# [NAME](#NAME)

Test2::Compare::Float - Compare two values as numbers with tolerance.

# [DESCRIPTION](#DESCRIPTION)

This is used to compare two numbers. You can also check that two numbers are not the same.

This is similar to Test2::Compare::Number, with extra checks to work around floating point representation issues.

The optional 'tolerance' parameter controls how close the two numbers must be to be considered equal. Tolerance defaults to 1e-08.

**Note**: This will fail if the received value is undefined. It must be a number.

**Note**: This will fail if the comparison generates a non-numeric value warning (which will not be shown). This is because it must get a number. The warning is not shown as it will report to a useless line and filename. However, the test diagnostics show both values.

# [SOURCE](#SOURCE)

The source code repository for Test2-Suite can be found at *https://github.com/Test-More/test-more/*.

# [MAINTAINERS](#MAINTAINERS)

[Chad Granum <exodist@cpan.org>](#Chad)

# [AUTHORS](#AUTHORS)

[Andrew Grangaard <spazm@cpan.org>](#Andrew)

# [COPYRIGHT](#COPYRIGHT)

Copyright Chad Granum <exodist@cpan.org>.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See *http://dev.perl.org/licenses/*

2026-08-31 perl v5.44.0

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Document: Test2::Compare::Float(3pm) from perl 5.44.0-r1 (Chainguard OS)
Source: https://github.com/Perl/perl5.git