Do you mean using a PDF viewer for plots and other graphics,  or, somehow, for 
the whole J session?

Thanks,

Mike

Sent from my iPad

> On 2 Jan 2020, at 21:20, Michael Dykman <mdyk...@gmail.com> wrote:
> 
> I got a new Android last week (Samsung A70) and installed v9 without a
> hitch. I used package manager to update/install everything before I
> attempted to use plot but plot just works for me.
> 
> On Android, the default display option is to generate a PDF and then trust
> the operating system to launch an appropriate viewer. Are you sure that you
> have a PDF viewer installed?
> 
> mine:
> 
>       JVERSION
> 
> Engine: j901/j64/android
> Release-a: commercial/2019-12-21T13:04:08
> Library: 9.01.18
> J Android: 1.4.00/9/28
> Platform: Android 64 (arm64-v8a)
> Installer: unknown
> InstallPath: /storage/emulated/0/Android/data/com.jsoftware.j.android/files
> Contact: www.jsoftware.com
> 
> 
> On Thu, Jan 2, 2020, 15:10 'Mike Day' via Programming <
> programm...@jsoftware.com> wrote:
> 
>> Pace Chris,  I won't take it on myself to change to General for this
>> thread.
>> 
>> I bought my new Android phone in September and am still pretty clueless
>> for nearly everything, including answering a call!
>> 
>> So it's hardly surprising I'm also clueless getting J901 to work on it.
>> 
>> As far as I know,  my phone was using the house wifi,  and the router
>> could see
>> the Internet.
>> 
>> The phone is a Nokia 3.2 (Model & Hardware: TA-1156) running Android 9 .
>> I've tried reproducing a few of the actions discussed by Chakraborty and
>> Lam without
>> much enlightenment.
>> 
>> These (edited and _/annotated/_) excerpts from a session might help you
>> help me:
>> 
>> JVERSION
>> Engine: j901/j64/android
>> Release-a: commercial/2019-12-21T13:04:08
>> Library: 9.01.18
>> J Android: 1.4.00/9/28
>> Platform: Android 64 (arm64-v8a)
>> Installer: unknown
>> InstallPath: /storage/emulated/0/Android/data/com.jsoftware.j.android/files
>> Contact: www.jsoftware.com
>> 
>> /NB. tried this in response to Arnab Chakraborty's query /
>> load'plot'
>> not found:
>> 
>> /storage/emulated/0/Android/data/com.jsoftware.j.android/files/addons/graphics/plot/plot.ijs
>> |file name error: script
>> |       0!:0 y[4!:55<'y'
>>    plot
>> |value error: plot
>> 
>> /NB. and this..../
>>    load'pacman'
>>    install'math/calculus'
>> Updating server catalog...
>> Connection failed: 4000 : android.os.NetworkOnMainThreadException
>> Connection failed:
>> 4000 : android.os.NetworkOnMainThreadException
>> Connection failed: 4000 : android.os.NetworkOnMainThreadException
>> Connection failed:
>> 4000 : android.os.NetworkOnMainThreadException
>> 
>> 
>> 
>>    install'math/calculus'
>> Updating server catalog...
>> Connection failed: 4000 : android.os.NetworkOnMainThreadException
>> /
>> //NB. following Bill's suggestion to Chakraborty/
>> /NB. using variable q to avoid mistakes in typing long/ /name /
>> q=:'http://www.jsoftware.com/jal/j901/revision.txt'
>>    q
>> http://www.jsoftware.com/jal/j901/revision.txt
>> 
>>    a1=:    11!:4000 q
>> |domain error
>> |   a1=:    11!:4000 q
>>    a1
>> |value error: a1
>> 
>>    a1=:    11!:4000 <q /NB. perhaps it needs boxing /
>> |domain error
>> |   a1=:    11!:4000<q
>> 
>> So the (undocumented?) 11!:4000 doesn't work on my phone?
>> 
>> I _do_ manage to use my iPad (but only iOS 12.4 I think - won't go to vn
>> 13)
>> reasonable successfully now - but it would be nice to have J9.01 working on
>> a mobile toy too.
>> 
>> Thanks,
>> 
>> Mike
>> 
>>> On 01/01/2020 16:10, bill lam wrote:
>>> Oh sorry, should be
>>> 'install' jpkg 'all'
>>> 
>>> Wed, 01 Jan 2020, bill lam написал(а):
>>>> Bo, I think you had not install plot addon. Since you installed J under
>>>> program file folder, it requires administrative right to write files
>> there.
>>>> 
>>>> I think the easiest way for you is to install J again on folders other
>> than
>>>> program file. And then install all addons, eg
>>>> load'pacman'
>>>> 'update' jpkg ''
>>>> 'install' jpkg ''
>>>> 
>>>> 
>>>> On Wed, Jan 1, 2020, 8:02 PM 'Bo Jacoby' via Programming <
>>>> programm...@jsoftware.com> wrote:
>>>> 
>>>>>  I cannot make plot work either in J807
>>>>>    load 'plot'
>>>>> not found: c:/program files/j807/addons/graphics/plot/plot.ijs
>>>>> |file name error: script
>>>>> 
>>>>> | 0!:0 y[4!:55<'y'
>>>>> 
>>>>>  JVERSION
>>>>> Engine: j807/j32/windows
>>>>> 
>>>>> Release-d: commercial/2019-03-18T13:09:48
>>>>> 
>>>>> Library: 8.07.25
>>>>> 
>>>>> Qt IDE: 1.7.10s/5.9.8
>>>>> 
>>>>> Platform: Win 32
>>>>> 
>>>>> Installer: J807 install
>>>>> 
>>>>> InstallPath: c:/program files/j807
>>>>> 
>>>>> Contact: www.jsoftware.com
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>     Den onsdag den 1. januar 2020 12.51.54 CET skrev Raoul Schorer <
>>>>> raoul.scho...@gmail.com>:
>>>>> 
>>>>>  Hi,
>>>>> 
>>>>> For the record, I also get the same error for all 'jpkg' commands:
>>>>> 
>>>>> load'pacman'
>>>>>   'update'jpkg''
>>>>> Updating server catalog...
>>>>> |limit error: fixzips
>>>>> |  siz=.0".(ndx+1)    }.&>fls
>>>>>   JVERSION
>>>>> Engine: j901/j32/android
>>>>> Release-a: commercial/2019-12-21T13:06:35
>>>>> Library: 9.01.18
>>>>> J Android: 1.4.00/8.1.0/27
>>>>> Platform: Android 32 (armeabi-v7a)
>>>>> Installer: unknown
>>>>> InstallPath:
>> /storage/emulated/0/Android/data/com.jsoftware.j.android/files
>>>>> Contact: www.jsoftware.com
>>>>> 
>>>>> 
>>>>> Raoul
>>>>> 
>>>>> Le mer. 1 janv. 2020 à 11:24, Arnab Chakraborty <damd...@gmail.com> a
>>>>> écrit :
>>>>> 
>>>>>> jandroid.apk
>>>>>> 
>>>>>> 
>>>>>> 
>>>>> 
>> https://drive.google.com/file/d/1-RnK3suQNJnXdg4qpSbhI1KrTXuiCdjL/view?usp=drivesdk
>>>>>> On Wed, 1 Jan 2020, 15:39 Arnab Chakraborty, <damd...@gmail.com>
>> wrote:
>>>>>> 
>>>>>>> I did file>exit in j session, started a new session :
>>>>>>> 
>>>>>>>  load'pacman'
>>>>>>>    'update'jpkg''
>>>>>>> Updating server catalog...
>>>>>>> |limit error: fixlibs
>>>>>>> |  siz=.<&>0".(ndx+1)    }.&>fls
>>>>>>> 
>>>>>>> 
>>>>>>> Just in case it helps I can upload the apk somewhere, so that you can
>>>>>>> check.
>>>>>>> 
>>>>>>>> On Wed, 1 Jan 2020, 15:23 bill lam, <bbill....@gmail.com> wrote:
>>>>>>>> 
>>>>>>>> Does this succeed in a fresh session?
>>>>>>>> 
>>>>>>>> load'pacman'
>>>>>>>> 'update'jpkg''
>>>>>>>> 
>>>>>>>> Wed, 01 Jan 2020, Arnab Chakraborty написал(а):
>>>>>>>>> Thanks for helping me, Bill.
>>>>>>>>> 
>>>>>>>>> a1, a2 ok.
>>>>>>>>> 
>>>>>>>>>  '75c5a3de1aee72870518799ab72d129dcd8ea9ab' =128!:6 a2
>>>>>>>>> 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
>>>>> 1
>>>>>> 1
>>>>>>>> 1 1
>>>>>>>>> 1 1
>>>>>>>>> 
>>>>>>>>> On 1 Jan 2020 2:14 pm, "bill lam" <bbill....@gmail.com> wrote:
>>>>>>>>> 
>>>>>>>>> can you try
>>>>>>>>> a1=: 11!:4000'http://www.jsoftware.com/jal/j901/revision.txt'
>>>>>>>>> a2=: 11!:4000'http://www.jsoftware.com/jal/j901/jal.tar.gz'
>>>>>>>>> 
>>>>>>>>> then check
>>>>>>>>>    a1
>>>>>>>>> 234
>>>>>>>>>    $a2
>>>>>>>>> 16104
>>>>>>>>>    128!:6 a2
>>>>>>>>> 75c5a3de1aee72870518799ab72d129dcd8ea9ab
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> Wed, 01 Jan 2020, Arnab Chakraborty написал(а):
>>>>>>>>> 
>>>>>>>>>>    JVERSION
>>>>>>>>>> Engine: j901/j32/android
>>>>>>>>>> Release-a: commercial/2019-12-21T13:06:35
>>>>>>>>>> Library: 9.01.18
>>>>>>>>>> J Android: 1.4.00/7.0/24
>>>>>>>>>> Platform: Android 32 (armeabi-v7a)
>>>>>>>>>> Installer: unknown
>>>>>>>>>> InstallPath:
>>>>>>>>> /storage/emulated/0/Android/data/com.jsoftware.j.android/files
>>>>>>>>>> Contact: www.jsoftware.com
>>>>>>>>>> 
>>>>>>>>>> On Wed, 1 Jan 2020, 13:16 Arnab Chakraborty, <damd...@gmail.com>
>>>>>>>> wrote:
>>>>>>>>>>> commandline doesn't help, either:
>>>>>>>>>>> 
>>>>>>>>>>> load'pacman'
>>>>>>>>>>>    install 'math/calculus'
>>>>>>>>>>> Updating server catalog...
>>>>>>>>>>> |limit error: fixlibs
>>>>>>>>>>> |  siz=.<&>0".(ndx+1)    }.&>fls
>>>>>>>>>>> 
>>>>>>>>>>> On Wed, 1 Jan 2020, 13:13 Arnab Chakraborty, <damd...@gmail.com
>>>>>>>> wrote:
>>>>>>>>>>>> Did a fresh Uninstall download install cycle. Tried
>>>>> tools>pacman
>>>>>>>>>>>> got
>>>>>>>>>>>> 
>>>>>>>>>>>> |limit error: fixlibs
>>>>>>>>>>>> |  siz=.<&>0".(ndx+1)    }.&>fls
>>>>>>>>>>>> 
>>>>>>>>>>>> On Wed, 1 Jan 2020, 11:02 bill lam, <bbill....@gmail.com>
>>>>> wrote:
>>>>>>>>>>>>> it works for me. what's your JVERSION?
>>>>>>>>>>>>> 
>>>>>>>>>>>>> On Wed, Jan 1, 2020, 1:13 PM Arnab Chakraborty <
>>>>>> damd...@gmail.com
>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Dear all,
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> load 'plot'
>>>>>>>>>>>>>> plot i. 7
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> CRASH!
>>>>>>>>>>>>>> 
>>>>> ----------------------------------------------------------------------
>>>>>>>>>>>>>> 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
>>>>>>>>> --
>>>>>>>>> regards,
>>>>>>>>> ====================================================
>>>>>>>>> GPG key 1024D/4434BAB3 2008-08-24
>>>>>>>>> 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
>>>>>>>> --
>>>>>>>> regards,
>>>>>>>> ====================================================
>>>>>>>> GPG key 1024D/4434BAB3 2008-08-24
>>>>>>>> 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
>>>>> 
>>>>> ----------------------------------------------------------------------
>>>>> 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
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

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