Yes, I tried in jios too, and was going to ask the forum how to get the arrows, but I then tried it in JQt under Windows on the laptop, where they did appear, pointing in what appeared to be the correct direction.
Mike Sent from my iPad > On 4 Mar 2023, at 22:25, Ian Clark <[email protected]> wrote: > > Jan-Pieter wrote: >> Jios 903.1 gives the same result (i.e. colours, but not arrows). > > When I get time I'll look into this. But for now I'll just say that jios > uses plot/pd to generate a *pdf* of the viewmat pic, which is what it > displays. Generation of the pdf might possibly be corrupt or incomplete. > > Might there be a font full of arrows missing? (Just a guess). > >> On Thu, 2 Mar 2023 at 14:33, Jan-Pieter Jacobs <[email protected]> >> wrote: >> >> I think Esa is right. >> It's explained with some examples in the viewmat lab, pages 8/20-12/20. >> >> It does not seem to work on Android though, just returning a blank window >> (while viewmat on real inputs works perfectly). >> >> On the J Playground, it ddes not work either: it just shows the magnitude, >> but not the arrows. Jios 903.1 gives the same result (i.e. colours, but not >> arrows). >> >> Jan-Pieter >> >>> On Thu, 2 Mar 2023, 14:02 esal, <[email protected]> wrote: >>> >>> I think it represents the angle (phase, argument) of the complex number >>> while the color is mapped to the magnitude (absolute value, length). >>> >>> Esa >>> >>> On Wed, Mar 1, 2023 at 7:21 PM Michal Wallace <[email protected]> >>> wrote: >>> >>>> What is the word for what the arrows mean in viewmat when you are >> looking >>>> at complex numbers? >>>> >>>> I think that multiplying a number by the arrow's corresponding point is >>>> going to do some kind of shearing (?) in that direction, but can >> someone >>>> help me put this concept into words? >>>> >>>> Thanks! >>>> -Michal >>>> ---------------------------------------------------------------------- >>>> 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
