mailing-list for TeXmacs Users

["Andrey G. Grozin" <address@hidden>]

On Sun, 23 Feb 2020, Daniel Volinski wrote:
> I'm using the TeXmacs - Maxima interface. When I write in a Maxima cell the 
> following: cos(theta), I get as a response cos
> of the Greek character known as vartheta not the Greek character theta. What 
> should I do in order to get the later.
This is defined in maxima itself. The file src/mactex.lisp, which is used 
to produce LaTeX output from maxima, contains

(defprop $theta "\\vartheta" texword)

You can write a short lisp file that redefines this property, and read it 
in the beginning of your maxima session (say, from the maxima init file). 
(Personally I think that the TeX \vartheta *is* the proper Greek letter 
theta. It seems the authors of maxima mactex.lisp think the same.)

> Another question is, how can I put the actual Greek character theta in a 
> Maxima cell instead of writing the name of the
> character?
I think this can be achieved by editing 
src/plugins/maxima/progs/maxima-input.scm
Near the end of this file, add the line
("<theta>" "theta")
Then the TeXmacs character <theta> will be sent to maxima as the ascii 
string theta (and this variable is displayed as the real greek letter in 
the output).

Andrey