Branch Commands - HP 39G User Manual

UNCHECK

Branch commands

IF...THEN...END
Programming
View numbers
The views are numbered as follows:
0 HOME
1 Plot
2 Symbolic
3 Numeric
4 Plot-Setup
5 Symbolic-Setup
6 Numeric-Setup
7 Views
8 Note
9 Sketch view
10 Aplet Catalog
Unchecks (unselects) the corresponding function in the
current aplet. For example, Uncheck 3 would uncheck F3 if
the current aplet is Function.
UNCHECK n
Branch commands let a program make a decision based on the
result of one or more tests. Unlike the other programming
commands, the branch commands work in logical groups.
Therefore, the commands are described together rather than
each independently.
Executes a sequence of commands in the true–clause only if
the test–clause evaluates to true. Its syntax is:
IF test–clause
THEN true–clause END
Example
1 A :
IF A==1
THEN MSGBOX A " EQUALS 1" :
END
11 List Catalog
12 Matrix Catalog
13 Notepad Catalog
14 Programs Catalog
15 Plot-Detail
16 Plot-Table
17 Overlay Plot
18 Auto scale
19 Decimal
20 Integer
21 Trig
15-17