If you want to make a high precision calculation with Perl you could use the bignum module.As little example:
#!/usr/bin/perl print 4/3,"\n"; use bignum; print 4/3,"\n";
And we could see the second result has a better accuracy than the default:
1.33333333333333 1.333333333333333333333333333333333333333
But you could improve this by setting the precision in Significant figures, like in this example we want 60.
#!/usr/bin/perl print sqrt(20),"\n"; use bignum ( p => -60 );; print sqrt(20),"\n";
As result we get:
4.47213595499958 4.472135954999579392818347337462552470881236719223051448541794
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