Re: modulus and floating point numbers

by BrowserUk (Patriarch)

on Nov 18, 2008 at 02:57 UTC ( [id://724180]=note: print w/replies, xml )

Need Help??

Whether it's faster or not you'll have to determine yourself, but it's another way:

use POSIX qw[ fmod ];;
print fmod( $_, 100 ) for 12300, 12301, 12399;;
0
1
99
[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.

Comment on Re: modulus and floating point numbers Download Code

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Re^2: modulus and floating point numbers by dextius (Monk) on Nov 18, 2008 at 03:15 UTC
how about .00001 ?	[reply]
Re^3: modulus and floating point numbers by BrowserUk (Patriarch) on Nov 18, 2008 at 03:34 UTC
I'm not sure if I understand the question, but: `[0] Perl> print fmod( $_, 100 ) for 12300, 12301, 12399, .00001;; 0 1 99 1e-005` [download] Or do you mean this: `[0] Perl> print fmod( $_, 1 ) for map{ ($_, -$_ ) } 12300, 12301, 1239 +9, .00001;; 0 0 0 0 0 0 1e-005 -1e-005` [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] [select]

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