Confirming Raul’s observations on this iPad running J701 under iOS 12.5.5 . viewmat shows the circle, square and intermediate shape without problem, presumably as required, after copying from the email and pasting into the terminal screen, so Raul probably typed correctly. Also, same result using either @ or @: as he found. And image is ok running with the one-liner pasted into the J701 E screen, ie the script-edit page.
Cheers, Mike Sent from my iPad > On 19 Sep 2022, at 16:52, Raul Miller <rauldmil...@gmail.com> wrote: > >> On Mon, Sep 19, 2022 at 11:15 AM Richard Donovan <rsdono...@hotmail.com> >> wrote: >> viewmat((1>+/~@:(4^~(%~i:)))*.1<+/~@:(2^~(%~i:)))666 >> NB. no output >> >> $viewmat((1>+/~@:(4^~(%~i:)))*.1<+/~@:(2^~(%~i:)))666 >> 0 0 > > This is probably more a topic for the general forum than the > programming forum, but viewmat also produces a shape 0 0 result in > jqt. (In jplayground, it produces a shape 1 result which is a single > space..) > > In the jqt viewmat, it pops up a new window with the image. In the > jplayground viewmat, it produces an inline image (JHS viewmat would be > similar to jplayground's viewmat). On my iphone, running j701, the > above expression presented the viewmat image at the top of the phone > (or an expression close to the above -- I hand entered the line, and > used @ instead of @: which should produce an equivalent result here, > but the point is that I may have inadvertently changed something > else...). > > To be sure that a viewmat image consistently appears, I copied the > line into the edit window and ran it from there -- when I did so, the > edit window was hidden (icon at bottom of region changed from E to J) > and the session window and the image window appeared. > > So... whatever the problem is, it might depend on the version of J you > are running and/or the version of ios that you are running? > > I hope this helps, > > -- > Raul > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
