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Is there a way to set a Perl script’s floating point precision (to 3 digits), without having to change it specifically for every variable?
Something similar to TCL’s:
global tcl_precision
set tcl_precision 3
There is no way to globally change this.
If it is just for display purposes then use
sprintf("%.3f", $value);.For mathematical purposes, use
(int(($value * 1000.0) + 0.5) / 1000.0). This would work for positive numbers. You would need to change it to work with negative numbers though.