Re^2: Perl 5.8.x floating point representation error

thank you Dave,

But using Math::BigFloat either did not solve my issue. BigFloat truncates after 16 digits in the exponential part and then adds zeros. Any workaround for this ?

use Math::BigFloat;

Math::BigFloat->accuracy(32);
Math::BigFloat->precision(-32);
$test = Math::BigFloat->new(0.99999999976716932);

print $test;

output:
0.99999999976716900000000000000000

but i need 0.99999999976716932

Comment on Re^2: Perl 5.8.x floating point representation error

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Re^3: Perl 5.8.x floating point representation error by BrowserUk (Patriarch) on Jan 21, 2009 at 12:40 UTC
Try it this way (notice the quotes): `use Math::BigFloat; Math::BigFloat->accuracy(32); Math::BigFloat->precision(-32); $test = Math::BigFloat->new('0.99999999976716932'); print $test; 0.99999999976716932000000000000000` [download] Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. "Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."	[reply] [d/l]
Re^3: Perl 5.8.x floating point representation error by Anonymous Monk on Jan 21, 2009 at 12:49 UTC
`my $string = "0.99999999976716932"; my $number = 0.99999999976716932; print " string = $string number = $number "; __END__ string = 0.99999999976716932 number = 0.999999999767169` [download]	[reply] [d/l]