I should have been more precise; I truncated my own remarks.
0.1 cannot be represented exactly in floating point because it is not
a power of two; whereas, 0.5 is 1/2 = 2^(-1).
Floating point stores its mantissa as binary bits.
On Tue, Feb 5, 2013 at 4:47 PM, Mateusz Kowalczyk
I thought that KC was asking why is 0.5 not displayed as 0.5 when it's supported by the IEEE754. Even if that wasn't question, it is my question now.
IEEE754 is capable of representing 0.5 with perfect precision; in fact, it would be `00111111000000000000000000000000'.
My question is why [0.1, 0.2 .. 1.0] comes up with an imprecise midpoint: [0.1,0.2,0.30000000000000004,0.4000000000000001,0.5000000000000001,0.6000000000000001,0.7000000000000001,0.8,0.9,1.0]
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-- -- Regards, KC