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bug#40155: 27.0.90; `math-truc' called with `nil' during `calc-graph-fas


From: Narendra Joshi
Subject: bug#40155: 27.0.90; `math-truc' called with `nil' during `calc-graph-fast' call
Date: Sat, 28 Mar 2020 14:58:06 +0100

Thanks Mattias. I think it never worked because the code is supposed
to add "ls <the number stored in LineStyles variable" into the buffer
but there seems to be no place which adds "ls" to the command. I will
open a new bug report for this.

Best,
Narendra

On Sat, Mar 28, 2020 at 2:35 PM Mattias Engdegård <address@hidden> wrote:
>
> 27 mars 2020 kl. 21.54 skrev Narendra Joshi <address@hidden>:
>
> > Thanks for the explanation. The patch fixes the original issue and
> > other calculations I tried didn't seem to be affected.
>
> Much appreciated -- pushed to emacs-27.
>
> > I found out that `calc` doesn't set the LineStyles (and maybe
> > PointStyles as well but I am not sure how to hand those over to
> > gnuplot command) properly for the gnuplot command. I think it should
> > do something similar to the patch I have attached.
>
> Thank you, but I'm not sure if it's quite that easy. The function 
> (calc-graph-set-styles) seems to parse a plot command in order to modify it. 
> Has this code never worked, or is it just Gnuplot's syntax that has changed?
>
> In any case, I'm closing this bug since the math-trunc error is fixed. You 
> can open a separate bug for the LineStyles and PointStyles problems, and 
> describe what it's all about.
>





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