On Aug 31, 2011, at 8:32pm, Ted Dunning wrote: > The basics of latex notation are > > ^ for superscript > _ for subscript > {} for grouping > \sum for summation > \log for logs > \Omega for upper case greek letter omega > \alpha for lower case greek letter beta > \int for integral. > > See http://www.codecogs.com/latex/eqneditor.php for a playground where you > can test things. > > Try this, for instance, > > F(x,y)=0 ~~\mbox{and}~~ > \left| \begin{array}{ccc} > F''_{xx} & F''_{xy} & F'_x \\ > F''_{yx} & F''_{yy} & F'_y \\ > F'_x & F'_y & 0 > \end{array}\ > right| = 0
The codecogs.com site says that it's an invalid equation. -- Ken > On Wed, Aug 31, 2011 at 7:24 PM, Dmitriy Lyubimov <dlie...@gmail.com> wrote: > >> PS >> >>> On Wed, Aug 31, 2011 at 3:57 PM, Lance Norskog <goks...@gmail.com> >> wrote: >>>> >>>> I see a fair amount of stuff here in what I think is MathML, but is >> displays >>>> raw in gmail. >>>> >> >> this is usually tex. I am not familiar with mathml that close but i >> think it is fundamentally different >> -------------------------- Ken Krugler +1 530-210-6378 http://bixolabs.com custom big data solutions & training Hadoop, Cascading, Mahout & Solr