Support GinacFunction._print_latex_() customization

[rwst]

Defining a LaTeX print function (instead of just a latex name) is only possible for GinacFunctions by changing Pynac.

I think it would be more consistent to simply allow the same mechanism as with BuiltinFunctions. This should pose no problem, since there it is already channeled through Pynac. Effectively, if there is not a LaTeX print function defined in Pynac then the Python _print_latex_ member should be tried.

This s pynac/pynac#184

See also #11428

CC: @paulmasson

Component: symbolics

Issue created by migration from https://trac.sagemath.org/ticket/20888

[rwst]

Description changed:

--- 
+++ 
@@ -1,3 +1,5 @@
 Defining a LaTeX print function (instead of just a latex name) is only possible for `GinacFunction`s by changing Pynac.
 
 I think it would be more consistent to simply allow the same mechanism as with `BuiltinFunction`s. This should pose no problem, since there it is already channeled through Pynac. Effectively, if there is not a LaTeX print function defined in Pynac then the Python `_print_latex_` member should be tried.
+
+See also #11428

[rwst]

Description changed:

--- 
+++ 
@@ -2,4 +2,6 @@
 
 I think it would be more consistent to simply allow the same mechanism as with `BuiltinFunction`s. This should pose no problem, since there it is already channeled through Pynac. Effectively, if there is not a LaTeX print function defined in Pynac then the Python `_print_latex_` member should be tried.
 
+This s https://github.com/pynac/pynac/issues/184
+
 See also #11428

[rwst]

comment:3

Implemented in pynac git master.

[paulmasson]

Dependencies: #21034

[rwst]

comment:5

What was the question?

[paulmasson]

comment:6

Waiting for pynac 0.6.8

[rwst]

comment:7

Implemented in #21034.

[rwst]

Changed dependencies from #21034 to none