2018-04-26 11:23 GMT-03:00 Jonathan Wilkes via Pd-list :
>
>
> There is a student working on double-precision t_float in Purr Data as
> part of GSoC this summer.
>
wasn't there a talk here on the pd list about double precision too?
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Pd-list@lists.iem.
> On Thursday, April 26, 2018, 4:30:47 AM EDT, hans w. koch
> wrote:
> thanks orm and cyrille
> for forcing me to acknowledge, that i´ve indeed hit the IEEE ceiling here.
> i stubbornly tried to turn a blind eye to that...
> i am using pd 48-1 in 64bit but to my understanding internally
thanks orm and cyrille
for forcing me to acknowledge, that i´ve indeed hit the IEEE ceiling here.
i stubbornly tried to turn a blind eye to that...
i am using pd 48-1 in 64bit but to my understanding internally it stil computes
single precision.
and the copy of pd-double floating around, doesn´t
well, 5^12 is in the range of the value represented by a float number. but at
this value, the precision is more than 1, so it's can be computed directlly,
but not with single iteration.
I guess wikipedia will explain it in more detail than what I can do in a mail.
https://en.wikipedia.org/wiki/
thanks, cyrille,
but why does the computation for 5pow12 [print start] in my patch then still
produce 2.44141e+08?
or 5pow12 - 4pow12 work?
(see attached)
cheers hans
big_number_precision2.pd
Description: Binary data
> Am 26.04.2018 um 09:46 schrieb cyrille henry :
>
> hello,
>
> this is n
hello,
this is not a probem with until, but a problem of big number precision.
see attachment.
cheers
c
Le 26/04/2018 à 09:30, hans w. koch a écrit :
dear miller,
all
for a project i am working with very high number of iterations.
but it seems i´ve literally hit a ceiling with [until]
for 4po
dear miller,
all
for a project i am working with very high number of iterations.
but it seems i´ve literally hit a ceiling with [until]
for 4pow12 iterations it performs fine.
but 5pow12 doesn´t.
feeding it into a counter, 5pow12 produces the same result as 4pow12.
attached a small patch to demo
