Programming 321
– You can either type the names of functions and commands or
insert them from the Catalog.
– A line can be longer than the width of the screen; if so, you
might have to scroll to view the entire statement.
– After typing each line, press Enter. This inserts a new blank line
and lets you continue entering another line.
– Use the
¡, ¢, £, and ¤ arrow keys to scroll through the function
or program for entering or editing commands.
Inserting comments
A comment symbol (©) lets you enter a remark. Comments can be useful
to someone viewing or editing the program. Comments do not display
when the program runs, and they have no effect on program flow.
À Comment showing required syntax. Because this library object is
public and this comment is the first line in a Func or Prgm block, the
comment displays in the Catalog as help. For details, see the
“Libraries” chapter.
To insert a comment:
1. Position the cursor at the end of the line where you want to insert a
comment.
2. On the Program Editor’s Actions menu, select Insert Comment.
3. Type the text of the comment after the © symbol.
Define LibPub volcyl(ht,r) =
Prgm
©volcyl(ht,r) => volume of cylinder
À
Disp “Volume =”, approx(p ¦ r
2
¦ ht)
©This is another comment.
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