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Diffstat (limited to 'pod/perltrap.pod')
| -rw-r--r-- | pod/perltrap.pod | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/pod/perltrap.pod b/pod/perltrap.pod index 831d2d5402..06ddb19bfc 100644 --- a/pod/perltrap.pod +++ b/pod/perltrap.pod @@ -672,18 +672,24 @@ operands, or output from same. =item * Numerical -Formatted output and significant digits +Formatted output and significant digits. In general, Perl 5 +tries to be more precise. For example, on a Solaris Sparc: print 7.373504 - 0, "\n"; printf "%20.18f\n", 7.373504 - 0; # Perl4 prints: - 7.375039999999996141 - 7.37503999999999614 + 7.3750399999999996141 + 7.375039999999999614 # Perl5 prints: 7.373504 - 7.37503999999999614 + 7.375039999999999614 + +Notice how the first result looks better in Perl 5. + +Your results may vary, since your floating point formatting routines +and even floating point format may be slightly different. =item * Numerical |