Tried it on my Fire and it did not fail. ARMv7 Processor rev 3 (v7l) 300.0MHz generic/blaze/blaze:2.3.4/GINGERBREAD/6.2.2
On Thu, Mar 22, 2012 at 4:45 PM, Paul Jackson <plj...@gmail.com> wrote: > I've found a strange set of errors doing trig on fractions. These do not > occur on my 32 or 64 bit PCs. They also don't occur if x is integers. > > x=.0.1*i:58 > y=.1 o. x > > x=.0.1*i:59. NB. this is the first vector length where I saw the error > y=.1 o. x > |NaN error > | y=.1 o.x > > x=.0.1*i:143 NB. this is where it seems to disappear > y=.1 o. x > > I wrote a loop to find problems one scalar at a time. There doesn't > seem to be any upper limit to the failures this way. > > Bug =: 3 : 0 > r =. i. 0 > i =. - y > > while. i <: y do. > a =. 0.1 * i > > try. > b =. 1 o. a > catch. > r =. r , a > end. > > i =. i + 1 > end. > r > ) > > Bug 60 > > _6 _5.9 _5.6 _5.3 _4.9 _4.8 _4.5 _4.2 _4 > _3.9 _3.7 _3.6 _3.5 _3.3 _3.2 _3.1 _3 _2.8 > _2.7 _2.5 _2.2 _1.8 _1.6 _1.5 _1.4 _0.9 _0.8 > 0.8 0.9 1.4 1.5 1.6 1.8 2.2 2.5 2.7 > 2.8 3 3.1 3.2 3.3 3.5 3.6 3.7 3.9 > 4 4.2 4.5 4.8 4.9 5.3 5.6 5.9 6 > > Paul > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
