word2007 equations

[chrizm7]

How do I do a 4x4 matrix in the 2007 math equation editor? 3x3 is the
biggest option they give.

 

[Jay Freedman]

How do I do a 4x4 matrix in the 2007 math equation editor? 3x3 is the
biggest option they give.

In a new equation container, type

\matrix(

at which point the \matrix part will collapse into a solid black
square. After the parenthesis, type four groups of three ampersands
separated by @ symbols, and finally the closing parenthesis:

&&&@&&&@&&&@&&&)

On the left end of the ribbon or on the dropdown menu from the arrow
at the right of the equation, choose Professional. That will result in
a 4x4 empty matrix.

The same idea can be applied to get bigger matrices or non-square
ones. If you type n ampersands per group, you get n+1 columns; you get
one row for each group.

You can also use the Linear command to go back from the Professional
view to see what it corresponds to. For example, here's the linear
code for a 4x4 identity matrix:

\matrix(1&0&0&0@0&1&0&0@0&0&1&0@0&0&0&1)

You can see that the ampersands are the markers between entries in the
same row, and the @ signs are the markers between rows.

--
Regards,
Jay Freedman
Microsoft Word MVP
Email cannot be acknowledged; please post all follow-ups to the
newsgroup so all may benefit.

 

[chrizm7]

Awesome, thanks. I tried the \matrix but when I saw the black square
I didn't know what to do.

 

[Herb Tyson [MVP]]

To save some effort, you can also just go ahead and insert a 3x3, then
modify the specification in linear mode. Word is nice enough to fill out the
syntax for you, by the way, so you don't need to insert the complete
specification. So, when you see:

(&&@&&@&&)

Just modify it like so, by inserting only &&&@ at the beginning:

(&&&@&&@&&@&&)

and, then right-cick and choose Professional and it's now a 4x4 matrix. If
you right-click and choose Linear, you'll see that Word added the needed
extra &'s:

(&&&@&&&@&&&@&&&)

If you want to edit in the other direction, however, you'd need to manually
delete all of the extra &'s.

 

[Beth Melton]

To tag on an additional note, once you have the matrix the way you want it,
select it, and then at the bottom of the Equation gallery (far left button
on the Design contextual tab for the Equation Tools), click "Save selection
to Equation Gallery" so the next time you need it all you have to do is
insert it from the gallery.

Please post all follow-up questions to the newsgroup. Requests for
assistance by email can not be acknowledged.

~~~~~~~~~~~~~~~
Beth Melton
Microsoft Office MVP

Co-author of Word 2007 Inside Out:
http://www.microsoft.com/MSPress/books/9801.aspx#AboutTheBook

Word FAQ: http://mvps.org/word
TechTrax eZine: http://mousetrax.com/techtrax/
MVP FAQ site: http://mvps.org/