Hi, All,

I am struggling with a number precision problem. Ideally, I would like to see every number that is calculated in my script (through division, multiplication, whatever...) automatically limited to 4 numbers to the right of the decimal point. According to this:-

http://perldoc.perl.org/Math/BigFloat.html

I should be able to manage that requirement through this command:-

Math::BigFloat->precision(-4);

...but I cannot get this to work at all. Has anyone tried to define a global setting like this before? If you didn't use Math::BigFloat, what was the alternative?

A simple example is below. Note that a *lot* of calculations are being exercised in the real script, so I would really like to get a global setting working.

use Math::BigFloat;
Math::BigFloat->precision(-4);

for ($m = 1; $m <= 3; $m++) {
    for ($n = 1; $n <= 3; $n++) {
        $x = $m * $n * rand(3);
        print ("$x ");
    }
    print ("\n");
}

[download]
Thanks,

Fiddler42

In reply to Math::BigFloat question (precision) by fiddler42

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