Playing with 4-bit unums (compact SORNS), I thought I would see how the
J-to-SORN & SORN-to-J conversions worked:
JNFS SFJN _3
__j_2
JNFS SFJN _2.5
__j_2
JNFS SFJN _2
_2
JNFS SFJN _1.5
_2j_1
JNFS SFJN _1
_1
JNFS SFJN _0.5
_1r2
JNFS SFJN _0.25
_0.5 NB. ??
JNFS SFJN _0
0
JNFS SFJN 0
0
JNFS SFJN 0.25
0j0.5
JNFS SFJN 0.5
1r2
JNFS SFJN 0.75
0.5j1
JNFS SFJN 1
1
JNFS SFJN 1.5
1j2
JNFS SFJN 1.75
1j2
JNFS SFJN 2
2
JNFS SFJN 2.5
2j_
JNFS SFJN 3
2j_
JNFS SFJN _
2j_
JNFS SFJN __
__
This would have been easier if JNFS and SFJN could handle vectors. In any
case, everything looked good, once I understood how Roger was representing
intervals in J as complex numbers, EXCEPT converting _0.25. Shouldn't
converting _0.25 to a SORN, then back to a J number produce _0j0.5, NOT
_0.5?
Skip
Skip Cave
Cave Consulting LLC
On Wed, Aug 17, 2016 at 7:21 AM, Skip Cave <[email protected]> wrote:
> Is there a way for the unum lab to discover where it was started from, and
> then set the working directory to that location, rather than having the
> user have to set the directory?
>
> Skip
>
> Skip Cave
> Cave Consulting LLC
>
> On Wed, Aug 17, 2016 at 6:47 AM, roger stokes <[email protected]>
> wrote:
>
>> Dear All,
>>
>> Please accept my apologies for wasting your time, and my thanks
>> for your patience, persistence and help.
>>
>> Skip, Raul, Vijay, you are quite right about 1 !: 44 .
>> Instead of cd .... I should have said
>>
>> 1 !: 44 'yourdirectory' NB. full pathname is recommended
>>
>>
>> Vijay, I made a correction following your mention of general/misc/fndef .
>> This file should not be needed.
>>
>>
>> Bob, thanks for the suggestion - it's a good way to get the lab started
>> but there is still the need to find the other scripts. I will ponder this
>> and see if there is a better way than as it is.
>>
>> Bill, thanks for the information about jconsole - I didn't know this
>> and am very glad you mentioned it.
>>
>> I have now uploaded a corrected version to www.learningj.com/unumslab.zip
>> .
>> However, I hope, I believe, that the VERSION YOU ALREADY HAVE should run
>> OK by doing this:
>>
>> 1 !: 44 'yourdirectory'
>>
>> first =: {. NB. workaround for Vijay's issues
>> snd =: 1 & {
>>
>> load 'labs/labs'
>>
>> lab_jlab_ 'unums.ijt'
>>
>>
>> Thanks again, everyone
>>
>> On Wed, Aug 17, 2016 at 4:12 AM, bill lam <[email protected]> wrote:
>>
>> > In the readme, it said
>> > ... jconsole doesn't support labs
>> >
>> > This is incorrect. One can run labs on jconsole
>> > and type labrun_jlab_ '' (and up arrow to recall)
>> > to advance.
>> >
>> > Вт, 16 авг 2016, roger stokes написал(а):
>> > > Dear All,
>> > >
>> > > I've heard it said that you don't understand a subject
>> > > unless you can explain it to a computer. With that in mind
>> > > I've attempted a software implementation of Gustafson's Unums 2.0
>> > >
>> > > ( http://www.johngustafson.net/presentations/Unums2.0.pdf ).
>> > >
>> > > If anyone is interested, there is a demo available in the
>> > > form of a J lab. To run the lab
>> > >
>> > > Download www.learningj.com/unumslab.zip
>> > >
>> > > Unzip into any convenient directory
>> > >
>> > > Follow directions in the readme file
>> > >
>> > > Comments and criticisms appreciated.
>> > >
>> > > Regards
>> > > ------------------------------------------------------------
>> ----------
>> > > For information about J forums see http://www.jsoftware.com/forum
>> s.htm
>> >
>> > --
>> > regards,
>> > ====================================================
>> > GPG key 1024D/4434BAB3 2008-08-24
>> > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3
>> > gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3
>> > ----------------------------------------------------------------------
>> > For information about J forums see http://www.jsoftware.com/forums.htm
>> >
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>>
>
>
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
