Casio FX-730P Owner's Manual page 30

20
CHAPTER 2 Manual Operations
Example:
Display the symbols
Z
~~ ~"
.
Press keys as shown below in the extension mode:
BUZZER EXT
RUN DEG
Since the above marks and symbols are available, they may be used for various
purposes. To cancel the extension mode, press
0
again and the "EXT" symbol
disappears.
Now we believe you understand key operations. While you are practicing key
operation, "Error 2" may be displayed and the pressed key locked. This is not
a trouble but a message that the wrong operation has been performed. It is there-
fore called the "error message." In such a case, press
the~
key. Then the error
message will disappear and the computer will become operable again. There are
several kinds of such error messages. For details, see page 68.