From: Dick Davies <rasputnik@...>
Date: 2010-08-23T05:32:15+09:00
Subject: Re: convert 125% into 1.25?

You can sort of cheat, thanks to Rubys open classes.
Just add a method to Fixnum:

~:) irb
>>
?> 100.class
=> Fixnum
>>
?> class Fixnum
>>   def percent
>>     return self.to_f / 100
>>   end
>> end
=> nil
>>
?> 100.percent
=> 1.0
>> 125.percent
=> 1.25
>> quit
~:)

This is pretty evil, though :)

It is actually possible to define a method called '%', but then you have
to call it as

100.%()

which looks awful.

On Sat, Aug 21, 2010 at 1:58 PM, Eric MSP Veith
<eveith@wwweb-library.net> wrote:
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> Pen,
>
> On Saturday 21 August 2010, Pen Ttt <myocean135@yahoo.cn> wrote:
>> irb(main):012:0> format("%.2f",125%)
>
> 125% is, strictly spoken, not a number, but a number plus a unit. The unit
> is a character, not an integer, and this makes "125%" only valid as a string
> in Ruby. You've got to remove the "%" sign before you can treat "125" as a
> number.
>
> HTH.
>
>                        Eric
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