Hi Jason,
On Wed, Mar 25, 2009 at 11:57 AM, Jason Grout <jason-s...@creativetrax.com>
> Can you post your patch that makes the functions typeset as greek
> letters?
This is my first attempt to modify Sage. So please feel free
to correct me. Let me mention the changes I have made
to get the elementary support for typesetting functions
as Greek letters.
(1) In file: "sage/misc/latex.py", I have added a function after the list
"common_varnames" as follows
--------------------------------------
def is_common_varname(a):
"""
Checks whether it is a common variable name such as alpha, beta
"""
if a in common_varnames:
return True
else:
return False
----------------------------------
(2) In file: "sage/calculus/calculus.py", change the line
"from sage.misc.latex import latex, latex_variable_name"
to
"from sage.misc.latex import latex, latex_variable_name, is_common_varname"
and in _latex_(self) function for "class SymbolicFunctionEvaluation"
I have added following three lines
--------------------------------------------------------
+ n = self._f._name
+ if is_common_varname(n):
+ return "\\%s(%s)"%(n, ', '.join([x._latex_() for x in self._args]))
try:
return latex(self._maxima_())
---------------------------------------------------------
> I believe http://trac.sagemath.org/sage_trac/ticket/4202 is relevant here.
Thanks, it should definitely help.
>> (2) In the list "common_varnames" (in sage/misc/latex.py) two
>> letters "Phi" and "phi" are missing.
> Yep, I ran into (2) a while back when doing spherical coordinates. Do
> you already have a patch to add them?
The patch that I am attaching has them added in it. However, I think
it will be better to have a separate patch for this, as this
is a stand-alone issue and should be fixed separately.
BTW, this patch is highly incomplete (for the intended aim) as of now.
Cheers,
Golam
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# HG changeset patch
# User Golam Mortuza Hossain <gmhoss...@gmail.com>
# Date 1238002038 10800
# Node ID 50546678cf7a3d0d208b4f476512c418f7e0dc5e
# Parent d9c91204a79be393d5c965b4ed18917b625fd007
Adds support for typsetting functions as Greek letters
diff -r d9c91204a79b -r 50546678cf7a sage/calculus/calculus.py
--- a/sage/calculus/calculus.py Fri Mar 13 14:01:37 2009 -0700
+++ b/sage/calculus/calculus.py Wed Mar 25 14:27:18 2009 -0300
@@ -297,7 +297,7 @@
from sage.structure.parent_base import ParentWithBase
import operator
-from sage.misc.latex import latex, latex_variable_name
+from sage.misc.latex import latex, latex_variable_name, is_common_varname
from sage.misc.misc import uniq as unique
from sage.structure.sage_object import SageObject
@@ -9749,6 +9749,9 @@
{{{\it \partial}}\over{{\it \partial}\,x}}\,\left \lceil x \right \rceil
"""
+ n = self._f._name
+ if is_common_varname(n):
+ return "\\%s(%s)"%(n, ', '.join([x._latex_() for x in self._args]))
try:
return latex(self._maxima_())
except:
diff -r d9c91204a79b -r 50546678cf7a sage/misc/latex.py
--- a/sage/misc/latex.py Fri Mar 13 14:01:37 2009 -0700
+++ b/sage/misc/latex.py Wed Mar 25 14:27:18 2009 -0300
@@ -747,6 +747,8 @@
'Sigma',
'tau',
'upsilon',
+ 'phi',
+ 'Phi',
'varphi',
'chi',
'psi',
@@ -754,6 +756,15 @@
'omega',
'Omega']
+def is_common_varname(a):
+ """
+ Checks whether it is a common variable name such as alpha, beta
+ """
+ if a in common_varnames:
+ return True
+ else:
+ return False
+
def latex_varify(a):
if a in common_varnames:
return "\\" + a
