It's because Pd saves the value by printing it as text into the patch file using a reduced precision format specifier (%g instead of %f, or %0.6f) so that the numbers look good on screen, with no extra zeros for example.
I don't like it either.

Martin

On 2012-04-07 22:40, Angakok Thoth wrote:
that's not what i mean.

i mean, that when i write 12345678 (must be 100% accurate within 32bit
float with 24bit mantissa) into an array and read it from there, it's
still 12345678.
but when i save that patch, close it and reload it, and i read from the
array, i get 12345700.

nothing to do with limitations of floating point number.


On Sun, Apr 8, 2012 at 4:23 AM, i go bananas <hard....@gmail.com
<mailto:hard....@gmail.com>> wrote:

    http://en.wikipedia.org/wiki/Floating_point




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