Sharp EL-9900 Operation Manual page 218

Chapter 13: Programming Features
4 Wait
5 Rem
6 End
7 Key
208
Wait [ natural number (1 to 255)]
Interrupts execution for the
(natural number) of seconds. If
no value is specified, interrup-
tion continues until any key is
pressed.
• A symbol will flash at the
upper right corner of the screen during the wait.
• This command can be used for displaying intermediate results
or other information.
Rem comments
Comments start with Rem and extend to the end of the line.
These lines are ignored at execution.
Comments should be entered as notes for future reference,
though it should be noted that they do occupy some memory
space.
End
Indicates the end of a program.
End is not necessary at the last line of the program.
Key variable
If a numeric key or one of the cursor keys is pressed, the variable
is set to the corresponding numeric value as specified in the
following table.
Keys and Corresponding Numbers
keys Numbers
0
1
2
3
4
keys Numbers
5
0
6
1
7
2
8
3
9
4
keys Numbers
'
5
;
6
{
7
}
8
9
10
11
12
13