[PD] floating-point question

[Lorenzo Sutton]

On 20/02/12 04:42, Jonathan Wilkes wrote:
> ----- Original Message -----
>> From: Mathieu Bouchard<matju at artengine.ca>
>> To: Hans-Christoph Steiner<hans at at.or.at>
>> Cc: pd-list at iem.at; Mirko Petrovich<mirko.petrovich at gmail.com>
>> Sent: Sunday, February 19, 2012 10:12 PM
>> Subject: Re: [PD] floating-point question
>>
>> Le 2012-02-19 à 21:52:00, Hans-Christoph Steiner a écrit :
>>>   On Feb 17, 2012, at 4:27 PM, Mirko Petrovich wrote:
>>>>   I'm having a problem with a patch doing some very simple math. The
>> problem is that float 0.1 represents as 0.0999985 in some cases.
>>>   That's a problem with floating point calculations on computers,
>> unfortuantely.  Hard to work around that.
>>
...
> With 64-bit floats does this problem practically go away (like getting an index into
> a large table)?
Careful, though, if you convert it back to 32 or 16 bit.
Especially if you are using expensive gear:

http://www.around.com/ariane.html