On Fri, 2008-11-07 at 09:45 +0100, IOhannes m zmoelnig wrote: > Mark Sexton wrote: > > Hi > > I need PD to make simple but accurate calculations for a sonification > > project. However there seems to be a problem working accurately with floats > > that have 7 or more digits in total (before or after the decimal point). PD > > always seem to round the figure to 6 digits whether in a calculation, or > > even typing a 7+ digit float into a number box e.g. 1234.5678 rounded to > > 1234.57 > > > > I've got a couple of ugly hacks to work around for now, but it seems a > > fairly fundamental thing to do, so would be grateful to hear if I'm missing > > a simple way to get PD to work accurately with floats of any arbitrary > > length above 6 digits. > > > > you don't need anything. > Pd does uses IEEE floating point values for numbers, you don't loose a > single bit. > it's only the GUI that likes to round the numbers when displaying it. > internally everything is "correct" (as far as it is possible using > single precision floats) > > you could change the "width" of a number-box to see more digits.
still only 6 digits are displayed. altough pd works internall with IEEE 32bit floating values, i couldn't think of an easy way to get them out of pd. both, print and the numberbox truncate the numbers. two ways - not very feasible, though - to get full precision out of pd come to my mind: - send the numbers over OSC to some other application - write the numbers to an audio file with 32bit bitlength. extract the numbers from there or has someone a better idea? roman ___________________________________________________________ Der frühe Vogel fängt den Wurm. Hier gelangen Sie zum neuen Yahoo! Mail: http://mail.yahoo.de
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