Forum: Ruby Displaying long floats without scientific notation

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sa 1. (Guest)
on 2008-12-10 16:34
Hello -

I need to display the long forms of numbers read from a database table
without scientific notation.

For example, a number read as 1.5e-6 should be displayed as "0.0000015",
and so on.

Is there an easy way to do this in ruby, or do I need to write a
function to do it? I was thinking about using a lot of
number.to_s.split...

Thanks!
Michael L. (Guest)
on 2008-12-10 16:54
(Received via mailing list)
On Wed, Dec 10, 2008 at 8:28 AM, sa 125 <removed_email_address@domain.invalid> 
wrote:
> number.to_s.split...
Use a formatted print statement.

printf("%.7f\n", 0.0000015)

You will need to adjust the first parameter to taste.

You can read about string formatting at your command line with: ri
Kernel.sprintf

There is also an alternative syntax, see: ri String.%

-Michael
sa 1. (Guest)
on 2008-12-11 09:44
That's what I needed, thanks.
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