bugGNU TeXmacs - Bugs: bug #63615, copy/paste in maxima plugin...

 
 

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bug #63615: copy/paste in maxima plugin produces wrong input

Submitter:  Kostas Oikonomou <koikonomou>
Submitted:  Tue 03 Jan 2023 10:20:26 PM UTC
   
 
Category:  Plugins Priority:  5 - Normal
Item Group:  Error Status:  Wont Fix
Privacy:  Public Assigned to:  vdhoeven
Originator Name:  Open/Closed:  Closed
Release:  None Release: 
Fixed Release:  None Fixed Release: 
Keywords: 

Mon 07 Aug 2023 11:15:03 AM UTC, comment #1: 

I think that this should be considered to be a bug in Maxima.

The point is that, in mathematics, the big summation operator usually has a larger binding force than the addition.  This is the convention that allows you to write sum_i a_i + sum_i b_i.
In any case, this is what TeXmacs assumes.  Of course, the fact that the right-hand x_i depends on i suggests an other convention.  Still, I think that this is wrong.

I checked this on a large corpus of articles by mathematicians and I did not yet find a single paper that deviates from the standard (though implicit) convention.

Joris van der Hoeven <vdhoeven>
Group administrator
Tue 03 Jan 2023 10:20:26 PM UTC, original submission:  

This is TeXmacs SVN 14093M, with maxima 5.46, on FreeBSD.

I start a maxima session and input the line

sum(x[i]+a*(y[i]-x[i]),i,1,m)

Then I activate mathematical input mode, copy the output to the next input line, and hit return.  The result is

a*sum_(i=1)^my_i-x_i+x_i

which is wrong.

I attach a .tm file and a .pdf version, which make the problem clearer.



Kostas Oikonomou <koikonomou>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attached Files
file #54186:  bug.tm added by koikonomou (2KiB - application/octet-stream)
file #54187:  bug.pdf added by koikonomou (33KiB - application/pdf)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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    Follow 5 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2023-08-07 vdhoeven StatusNone Wont Fix
        Assigned toNone vdhoeven
        Open/ClosedOpen Closed
    2023-01-03 koikonomou Attached File- Added bug.tm, #54186
        Attached File- Added bug.pdf, #54187

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