Re: for loop with float

Whenever I use fractional numbers in my programs, I always use rounding before printing them. For example:

$i= int($i*100+.5)/100;
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This makes sure you get exactly two numbers after the point. If I don't want to round the number I still add a small fractional number instead of 0.5, so that I don't get 5.99 if it really should be 6.00

Comment on Re: for loop with float Download Code

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Re^2: for loop with float by BrowserUk (Patriarch) on Jul 25, 2008 at 00:38 UTC
Why do it yourself when printf can do it for you? `print 6 - 1e-14;; 5.99999999999999 printf "%.f\n", 6 - 1e-14;; 6 printf "%.1f\n", 6 - 1e-14;; 6.0 printf "%.2f\n", 6 - 1e-14;; 6.00` [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: for loop with float by jethro (Monsignor) on Jul 25, 2008 at 03:31 UTC
Because I would do anything to avoid printf. I've written a rounding sub in half the time I need to read the printf man page. For me printf is symbolizing the awkwardness of C programming I'm happy to have left behind But thanks for the TMTOWTDI ;-)	[reply]