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[Giovanni Piredda <address@concealed>]

I think it is absolutely necessary ;-) that you learn basic Scheme. If you don't, you are going to use your time to debug pieces of code, if you do, you will succeed :-)

In this case, I *think* (because I did not read the code that you posted, I am guessing ;-) ) that you need to learn the so-called quoting, quasiquoting and unquoting. They are the means that Scheme uses to control code evaluation, which will help you building a list, letting Scheme know that it is not a function (so that Scheme does not execute the list as if it were code), and all the same execute code _inside_ the list.

The think at the beginning of this message was without asterisks ;-) let me know and I can send you some references.

Moreover it is extremely helpful, when debugging code and when showing one's code, to try and construct the shortest example that shows the issue one is working on: the one you posted contains pieces of code which do not influence the functioning of a TeXmacs `point` tag.

Giovanni

On 23/12/24 12:14, vincent douce wrote:

      for the following code

i would like to put the abscisses and ordonnées in some variable so that i can modity them simply

(the iame is to reduce the width so to have to trees on the same line)

a=1.5 pour le 1.5cm

b=2.5 pour le 2.5c

 les abscisses x1 x2 x3 = -3.34, -0.04, 2.71 (le 2.65 est une erreur je pense que c'est 2.71)

les ordonnes y1 y2 y3 y4= -3.03, -1.97, 1.01, 1.99

i have spent a long time with chatgpt trying to use some (define x1 ''-3.34’’) but with no success : the instruction (point x1 ‘’3’') seems not to work

any idea ?

thanks 

;-----------

;---------------------- arbre de probas ------------------

(kbd-map

(:mode in-text?)

("a z P"   (insert ';trois abscisses : -3.34  -0.04   2.71   ou 2.65   et

(math (tabular* (tformat (cwith "1" "-1" "2" "2" "cell-halign" "l") (cwith "1" "-1" "2" "2" "cell-height" "1cm") (cwith "1" "-1" "2" "2" "cell-vmode" "exact") (cwith "1" "-1" "1" "-1" "cell-valign" "c") (cwith "1" "-1" "2" "2" "cell-width" "2.5cm") (cwith "1" "-1" "2" "2" "cell-hmode" "exact") (cwith "1" "-1" "4" "4" "cell-width" "2.5cm") (cwith "1" "-1" "4" "4" "cell-hmode" "exact") (cwith "1" "-1" "4" "4" "cell-halign" "l") (cwith "4" "4" "1" "1" "cell-width" "2.5cm") (cwith "4" "4" "1" "1" "cell-hmode" "exact") (cwith "1" "-1" "6" "6" "cell-width" "3.5cm") (cwith "1" "-1" "6" "6" "cell-hmode" "exact") (cwith "1" "-1" "6" "6" "cell-halign" "l")

(table (row (cell "") (cell "") (cell "")

(cell (concat "p" (rsub "A") (around* "(" "B" ")") "=")) (cell "") (cell (concat "p" (around* "(" "A<cap>B" ")") "=")) (cell "")) (row (cell "")

(cell (concat "p" (around* "(" "A" ")") "=")) (cell "") (cell "") (cell "") (cell "") (cell "")) (row (cell "") (cell "") (cell "")

(cell (concat "p" (rsub "A") (around* "(" (wide "B" "<wide-bar>") ")") "=")) (cell "")

(cell (concat "p" (around* "(" (concat "A<cap>" (wide "B" "<wide-bar>")) ")"))) (cell "")) (row (cell "") (cell "")

(cell (draw-over "" (with "gr-mode" (tuple "edit" "line") "gr-frame" (tuple "scale" "1cm" (tuple "0.49gw" "0.5gh")) (graphics (line (point "-0.04" "1.99") (point "-3.34" "-0.08") (point "-0.04" "-1.97")) (line (point "2.71" "3.02") (point "-0.04" "1.99") (point "2.65" "1.01")) (line (point "2.71" "-0.96") (point "-0.04" "-1.97") (point "2.65" "-3.03")))) "4.10cm"))

(cell "") (cell "") (cell "") (cell "")) (row (cell "") (cell "") (cell "") (cell (concat "p" (rsub (wide "A" "<wide-bar>")) (around* "(" "B" ")") "=")) (cell "")

(cell (concat "p" (around* "(" (concat (wide "A" "<wide-bar>") "<cap>B") ")"))) (cell "")) (row (cell "")

(cell (concat "p" (around* "(" (wide "A" "<wide-bar>") ")") "=")) (cell "") (cell "") (cell "") (cell "") (cell "")) (row (cell "") (cell "") (cell "")

(cell (concat "p" (rsub (wide "A" "<wide-bar>")) (around* "(" (wide "B" "<wide-bar>") ")") "=")) (cell "")

(cell (concat "p" (around* "(" (concat (wide "A" "<wide-bar>") "<cap>" (wide "B" "<wide-bar>")) ")"))) (cell ""))

);table

)))

)))

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