Question

Is the 'matrix' option in the equation editor just for show? I can never get the thing to operate right and have to type it all in by hand: lets see if this shows :)

\[
\begin{array}c
\left[
a & b & c \\
d & e & f \\
g & h & i \\
\right]
\end{array}
\]

Answer 1

ack!! .... i switched out my \ begin{array}; \ end{array} and my \left, \right

Answer 2

\[
\left[
\begin{array}c
a & b & c \\
d & e & f \\
g & h & i \\
\end{array}
\right]
\]

Answer 3

this is what the equation editor does for me:

\[(a & b \ c & d)\]

Answer 4

i get the same thing as amistre64..

Answer 5

Yeah, actually, it is just for show, by which I mean I thought I'd removed it. Actually making matrices work the way they're done in the equation editor turns out to require an actual parser. Most of the `simplification' of LaTeX that happens in the equation editor just consists of allowing you to use commands without the \ . Simpler fractions (e.g., using (5 / 3) for a fraction) and matrices were in the editor a while back, but the parsing turned out to be too slow. I need to revisit that and make it a not-top-down parser, since that requires recursion and it seems like IE's JS is unbelievably bad about recursion.

Long story short, yes, I need to disable that until I can revisit the parsing strategy so it doesn't suck, since then I'll be able to actually turn the matrix handling back on.

Answer 6

var beginning = "\[\left[\begin{array}c "
var middle = " ? & ? & ? \\ ? & ? & ? "
var ending = "\end{array}\right]\*]"

display(middle)

function insert()
{
middle = \text entered\
var matrix = beginning + middle + end
}

perhaps? :)

Answer 7

Aw hell. Why not. I've been insistent in my mind that we need to make it not suck that much for the beginner, but whatever.