Thanks Bill and Henry. That would be wonderful. Light and fast. Love it
a lot.
thanks
Maurice
On Sun, Mar 12, 2023 at 12:28 PM Henry Rich <henryhr...@gmail.com> wrote:
> I reckon if the function can't be evaluated at the endpoint, plot should
> narrow the interval until it can be. I don't see myself having time to
> work on this any time soon, so if someone else wants to step up and make
> this change, please do. [Chris did 99.9% of the work on Plot but this
> bug is mine.]
>
> Henry Rich
>
> On 3/12/2023 1:07 AM, More Rice wrote:
> > Hi,
> >
> > some questions, if I may ...
> >
> > 1. plot can't handle asymptote (or "not in domain" issue) right at the
> > boundary in its domain?
> >
> > install 'all'
> >
> > load 'plot trig numeric'
> >
> > plot _5 5 ; '%' NB. ok
> >
> > plot _5 0 ; '%' NB. Bad
> >
> > |NaN error: plotfintvl
> >
> > | bakproj=.({:"1 zvals),~"0 1(}."1 zvals) -(}."1 secant)*"1 intsize
> >
> > plot 0 5 ; '%' NB. Bad
> >
> > |NaN error: plotfintvl
> >
> > | fwdproj=.({."1 zvals),"0 1(}:"1 zvals) +(}:"1 secant)*"1 intsize
> >
> > plot 0 10; '%:' NB. ok
> >
> > plot _1 10; '%:' NB. Bad
> >
> > |domain error: plotsubd
> >
> > | mtone1=.
> > (<./@:((((i.&0)@:(2&(<:/\)))>.((i.&0)@:(2&(>:/\))))"1))@(1&{::)"1 d
> >
> > JVERSION
> >
> > Engine: j903/j64avx2/windows
> >
> > Release-b: commercial/2022-01-28T04:09:50
> >
> > Library: 9.03.08
> >
> > Qt IDE: 1.9.5s/5.15.2(5.15.2)
> >
> > Platform: Win 64
> >
> > Installer: J903 install
> >
> > InstallPath: c:/users/myself/software/j903
> >
> > Contact: www.jsoftware.com
> >
> >
> >
> > 2. I'm trying to control plot's y-scale and x-/y-tick labels. I don't see
> > its doc in jwiki nor calculus.pdf. So, I tried scrolling through
> > Help|Studio|Showcase...|plot to see if they're possible; but still
> > nothing. For example, instead of a numeric value, I want to do 0, +/-
> > 1p1, +/- 2p1, etc. Can it be done?
> >
> >
> > 3. While looking for solution to #2, I stumbled upon a bug:
> > Help|Studio|Showcase...|isigraph. Repeatedly pressing F12 till you see
> > 'Screen Roller' (yes, ignore Paint Demo and just hit another F12). Once
> > you reach this stage, Paint Demo will relaunch if you try to exit the
> > window. In the end, I've to kill the jqt to get out of the demo.
> >
> >
> > thanks
> >
> >
> > Maurice
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
>
> ----------------------------------------------------------------------
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>
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