User`s manual

Your user-defined characters can be utilitarian or imaginative, any-
thing from a scientific symbol to script letters for your initials. Just
follow the simple steps below,
The only restriction on your creativity is that the characters you
define must fit the design grid shown in Figure 8-l.
Designing Process
Suppose that you want to print the scientific symbol for the planet
Mercury. Although the LX-90 has a number of special symbols, Mer-
cury’s symbol is not one of them. You can, however, create and print
such a symbol with ease. First, use a grid like the one in Figure 8-l to
plan where to place the dots.
7
6
5
4
3
2
1
Figure 8-1. Grid for designing characters
123456789
When you place your dots on this grid, keep in mind that dots
cannot go on the horizontal lines, but they can go on the vertical lines
so long as they do not overlap any other dots. If you do accidentally
call for overlapping dots, don’t worry. The program will still work,
but only one of the dots will be printed.
Because of the limitations discussed in the section on problem codes
in Appendix E, the bottom two rows in the grid correspond to the
position of descenders of standard letters. (Descenders are the bottom
parts of such letters as g and y.)
56