Re: [Maxima-discuss] Something like texput, but for display2d?

[Gunter K. <gu...@pe...>]

For the blank lines I have no solution. But the parenthesis can be removed using lmxchar and its right-hand equivalent.

Kind regards,

   Gunter.

Am 24. August 2022 02:45:30 MESZ schrieb Eduardo Ochs <edu...@gm...>:
>Hi list,
>
>I am trying to learn how to define new operators that have "nice"
>representations in LaTeX and in display2d. Here is the example on
>which I am working. I want
>
>  Eq5(aa, bb, cc, dd, ee)
>
>to be displayed as:
>
>  aa = bb
>     = cc
>     = dd
>     = ee
>
>To configure its LaTeX output I simply adapted the example in the
>section about "texput" here,
>
>  (info "(maxima)Functions and Variables for TeX Output")
>
>and I wrote this:
>
>  texEq5(ex) :=
>    block([a,b,c,d,e], [a,b,c,d,e] : args (ex),
>      concat("\\begin{array}{rcl}",
>             tex1(a), "&=&", tex1(b), "\\\\",
>                      "&=&", tex1(c), "\\\\",
>                      "&=&", tex1(d), "\\\\",
>                      "&=&", tex1(e), "\\\\",
>             "\\end{array}"));
>  texput(Eq5, texEq5);
>  tex(Eq5(aa, bb, cc, dd, ee));
>
>Here's the output of the last line above, indented by hand:
>
>  $$\begin{array}{rcl}
>      {\it aa} &=& {\it bb} \\
>               &=& {\it cc} \\
>               &=& {\it dd} \\
>               &=& {\it ee} \\
>    \end{array}
>  $$
>
>This was easy to do, and works great. But I couldn't find much
>documentation on how to configure how display2d displays "Eq5"
>objects. I was only able to write this prototype for the first step:
>
>  MatrixEq5(ex) :=
>    block([a,b,c,d,e], [a,b,c,d,e] : args (ex),
>      matrix([a,"=",b],["","=",c],["","=",d],["","=",e]))$
>
>If I run this
>
>  MatrixEq5(Eq5(aa, bb, cc, dd, ee));
>
>the output is:
>
>      [ aa  =  bb ]
>      [           ]
>      [     =  cc ]
>      [           ]
>      [     =  dd ]
>      [           ]
>      [     =  ee ]
>
>So, questions:
>
>  1) How can I get rid of the outer "[]"s?
>  2) How can I get rid of the blank lines?
>  3) How can I make Eq5 objects be displayed with MatrixEq5?
>  4) Where can I find docs and examples about this?
>
>Thanks in advance! =)
>  Eduardo Ochs
>  http://angg.twu.net/eev-maxima.html