HP F2222A#ABA hp 9g_user's manual_manuel de l'utilisateur_EF_HDP1SG181S5.pdf - Page 29

Relational Operators, Creating a New Program, Executing a Program

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⇒ The SWAP command swaps the contents in two memory variables. Relational Operators The relational operators that can be used in FOR loops and conditional branching are: = = (equal to), < (less than), > (greater than), ≠ (not equal to), ≤ (less than or equal to), ≥ (greater than or equal to). Creating a New Program 1. Select NEW from the program menu and press [ ]. 2. Select the calculation mode you want the program to run in and press [ ]. 3. Select one of the ten program areas (P0123456789) and press [ ]. 4. Enter your program's commands. • You can enter the calculator's regular functions as commands. • To enter a program control instruction, press [ 2nd ] [ INST ] and make your selection. • To enter a space, press [ ALPHA ] [ SPC ]. 5. A semicolon (;) indicates the end of a command. To enter more than one command on a command line, separate them with a semicolon. For example: Line 1: INPUT A ; C = 0.5 × A ; PRINT " C = " , C ; END You can also place each command or group of commands on a separate line, as follows. In this case, a trailing semicolon can be omitted. Line 1: INPUT A ; C = 0.5 × A [ ] Line 2: PRINT " C = " , C ; END Executing a Program 1. When you finish entering or editing a program, press [ / CL ESC ] to return to the program menu, select RUN and press [ ]. (Or you can press [ PROG ] in MAIN mode.) 2. Select the relevant program area and press [ ] to begin executing the program. 3. To re-execute the program, press [ ] while the program's final result is on the display. 4. To abort the execution of a program, press [ / CL ESC ]. A message appears asking you to confirm that you want to stop the execution. STOP : N Y Press [ ] to move the cursor to Y and then press [ ]. E-29

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E-29
⇒
The
SWAP
command swaps the contents in two memory variables.
Relational Operators
The relational operators that can be used in
FOR
loops and conditional
branching are:
= = (equal to), < (less than), > (greater than),
≠
(not equal to),
≤
(less
than or equal to),
≥
(greater than or equal to).
Creating a New Program
1. Select
NEW
from the program menu and press [
].
2.
Select the calculation mode you want the program to run in and press
[
].
3.
Select one of the ten program areas (
P0123456789
) and press [
].
4.
Enter your program’s commands.
• You can enter the calculator’s regular functions as commands.
• To enter a program control instruction, press [ 2nd ] [ INST ] and
make your selection.
• To enter a space, press [ ALPHA ] [ SPC ].
5.
A semicolon (;) indicates the end of a command. To enter more than
one command on a command line, separate them with a semicolon. For
example:
Line 1:
INPUT
A ; C = 0.5
×
A ;
PRINT
” C = ” , C ;
END
You can also place each command or group of commands on a
separate line, as follows. In this case, a trailing semicolon can be
omitted.
Line 1:
INPUT
A ; C = 0.5
×
A
[
]
Line 2:
PRINT
” C = ” , C ; END
Executing a Program
1.
When you finish entering or editing a program, press [
CL
/
ESC
] to return
to the program menu, select
RUN
and press [
]. (Or you can press
[ PROG ] in
MAIN
mode.)
2.
Select the relevant program area and press [
] to begin executing
the program.
3.
To re-execute the program, press [
] while the program’s final
result is on the display.
4.
To abort the execution of a program, press [
CL
/
ESC
]. A message
appears asking you to confirm that you want to stop the execution.
STOP : N
Y
Press [
] to move the cursor to
Y
and then press [
].