[X4U] Tiger's Calculator.app no longer does percentages?

John Baltutis baltwo at san.rr.com
Sun Nov 27 21:25:56 PST 2005


On 11/27/05, Neil <Lists at mac.com> wrote:
> on 11/27/05 1:49 AM, John Baltutis wrote:
>
>> Really? 15%, by definition, is 15/100 = 0.15. See
>> <http://www.mathleague.com/help/percent/percent.htm>,
>> <http://www.math.com/school/subject1/lessons/S1U1L7GL.html>, and
>> <http://www.purplemath.com/modules/percents.htm>.
>
> You can quote all the URL's that you want, but it doesn't do you any good
> unless you actually read them.
>
>>From your first link:
>> 5% of something = 5/100 of that thing
>
> So, 5%=.05 only if "that thing" is 1.

5% = 0.05 = 0.05 * 1; ergo, that thing is always "that thing" if none other
is specified.

> No, this is why you are confused.  15% is not a number, it's a ratio.  You
> don't know it's value until you apply the ratio to the operand.

Agreed. 15% is a ratio. Of what? It's a ratio of two integers, the
denominator being 100. A ratio of any two integers is a rational number,
which, by everyone's definition, is a number.


More information about the X4U mailing list