Texas Instruments TI-Nspire, Manual Book

Page: 691 / 876

Programming 679
– After typing each line, press
·
. 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. From the Actions menu, select Insert Comment .
3. Type the text of the comment after the © symbol.
Checking syntax
The Program Editor lets you check the function or program for correct
syntax.
`
From the
Check Syntax & Store
menu, select
Check Syntax
.
If the syntax checker finds any syntax errors, it displays an error
message and tries to position the cursor near the first error so you can
correct it.
Define LibPub volcyl(ht,r) =
Prgm
©volcyl(ht,r) => volume of cylinder
À
Disp “Volume =”, approx(
p ¦
r
2
¦
ht)
©This is another comment.
EndPrgm