HP hp39gPlus User Guide - Page 227

Branch commands

Page 227 highlights

UNCHECK View numbers The Function aplet 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 11 List Catalog 12 Matrix Catalog 13 Notepad Catalog 14 Program Catalog 15 Plot-Detail 16 Plot-Table 17 Overlay Plot 18 Auto scale 19 Decimal 20 Integer 21 Trig 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 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. IF...THEN...END 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 1XA : IF A==1 THEN MSGBOX " A EQUALS 1" : END Programming 16-17

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Programming
16-17
View numbers
The Function aplet views are numbered as follows:
UNCHECK
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
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.
IF...THEN...END
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
0
1
2
3
4
5
6
7
8
9
10
HOME
Plot
Symbolic
Numeric
Plot-Setup
Symbolic-Setup
Numeric-Setup
Views
Note
Sketch view
Aplet Catalog
11
12
13
14
15
16
17
18
19
20
21
List Catalog
Matrix Catalog
Notepad Catalog
Program Catalog
Plot-Detail
Plot-Table
Overlay Plot
Auto scale
Decimal
Integer
Trig