Math Guide

Figure 16: Changing spacing in a matrix formula
2) In the Spacing dialog (Figure 16), click the Category button and
select Matrices in the drop-down menu.
3) Enter 0% for Column spacing and click OK.
Numbering equations
Equation numbering is one of OOo Math’s best hidden features. The
steps are simple, but obscure:
1) Start a new line.
2) Type fn and then press F3.
The fn is replaced by a numbered formula:
E=mc
2
(2)
Now you can double-click on the formula to edit it. For example, here
is the Riemann Zeta function:
z =
∑
n=1
∞
1
n
z
(3)
You can reference an equation (“as shown in Equation (2)”) with these
steps:
1) Choose Insert > Cross-reference from the menu bar.
2) On the Cross-references tab (Figure 17), under Type, select Text.
3) Under Selection, select the equation number.
4) Under Format, select Reference.
Click Insert.
16 OpenOffice.org 3 Math Guide