SimpleNumber:asFraction:
0.333.asFraction
returns an array with numerator and denominator
we should have one though (that can handle math, etc.). I'll think about building something like that.
Josh
On Sep 20, 2010, at 10:53 AM, Bernardo Barros wrote:
Hi,
Is there a (or kind of) Fraction class? (probably there is but I don't remember)
2010/9/19 Tim Blechmann <tim@xxxxxxxxxx>:
But the computer doesn't knows that :-/
I can't find a reference or explanation nor can deduce it myself.
0.33333333333333 * 3; // 0.99999999999999
0.33333333333334 * 3; // 1
0.33333333333335 * 3; // 0.0000000000001
0.333333333333333 * 3 // 1
Is this a feature of the floating point representation?
When one is one?
well, floating point numbers are not able to represent the number 1/3. [1]
may be interesting to read, as it describes some of the problems of using
floating-point math.
cheers, tim
[1] http://en.wikipedia.org/wiki/Floating_point#Accuracy_problems
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