Arrays are not supported with the built-in math engine. You'll need to
set math.usetex to True.
Cheers,
Mike
Nils Wagner wrote:
> Hi all,
>
> Is there a way to use
>
> title(r'$ M= I_3 K=\left[\begin{array}{rrr} 2,円k & -k & 0
> \\ -k & 2,円k+p & -(k+p) \\ 0 & -(k+p) &
> k+p\end{array}\right]$')
>
> It currently fails with
>
> Exception in Tkinter callback
> Traceback (most recent call last):
> File
> "/data/home/nwagner/local/lib/python2.5/lib-tk/Tkinter.py",
> line 1403, in __call__
> return self.func(*args)
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/backends/backend_tkagg.py",
> line 202, in resize
> self.show()
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/backends/backend_tkagg.py",
> line 205, in draw
> FigureCanvasAgg.draw(self)
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/backends/backend_agg.py",
> line 261, in draw
> self.figure.draw(self.renderer)
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/figure.py",
> line 759, in draw
> for a in self.axes: a.draw(renderer)
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/axes.py",
> line 1514, in draw
> a.draw(renderer)
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/text.py",
> line 297, in draw
> bbox, info = self._get_layout(renderer)
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/text.py",
> line 197, in _get_layout
> line, self._fontproperties,
> ismath=self.is_math_text(line))
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/backends/backend_agg.py",
> line 135, in get_text_width_height_descent
> self.mathtext_parser.parse(s, self.dpi, prop)
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/mathtext.py",
> line 2735, in parse
> box = self._parser.parse(s, font_output, fontsize,
> dpi)
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/mathtext.py",
> line 2208, in parse
> self._expression.parseString(s)
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 1048, in parseString
> loc, tokens = self._parse( instring, 0 )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 981, in _parseCache
> value = self._parseNoCache( instring, loc, doActions,
> callPreParse )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 924, in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc,
> doActions )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 2559, in parseImpl
> return self.expr._parse( instring, loc, doActions,
> callPreParse=False )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 981, in _parseCache
> value = self._parseNoCache( instring, loc, doActions,
> callPreParse )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 924, in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc,
> doActions )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 2307, in parseImpl
> loc, exprtokens = e._parse( instring, loc, doActions
> )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 981, in _parseCache
> value = self._parseNoCache( instring, loc, doActions,
> callPreParse )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 924, in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc,
> doActions )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 2672, in parseImpl
> loc, tokens = self.expr._parse( instring, loc,
> doActions, callPreParse=False )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 981, in _parseCache
> value = self._parseNoCache( instring, loc, doActions,
> callPreParse )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 924, in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc,
> doActions )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 2307, in parseImpl
> loc, exprtokens = e._parse( instring, loc, doActions
> )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 981, in _parseCache
> value = self._parseNoCache( instring, loc, doActions,
> callPreParse )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 924, in _parseNoCache
> loc,tokens = self.parseImpl( instring, preloc,
> doActions )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 2416, in parseImpl
> ret = e._parse( instring, loc, doActions )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 981, in _parseCache
> value = self._parseNoCache( instring, loc, doActions,
> callPreParse )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/pyparsing.py",
> line 950, in _parseNoCache
> tokens = fn( instring, tokensStart, retTokens )
> File
> "/data/home/nwagner/local/lib/python2.5/site-packages/matplotlib/mathtext.py",
> line 1963, in raise_error
> raise ParseFatalException(msg + "\n" + s)
> ParseFatalException: Expected end of math '$'
>
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--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA