Let's Operate The Computer - Casio FX-730P Owner's Manual

16
2-1 Let's Operate the Computer
Try the computer and see how it works.
First slide the power switch to ON, and the following display will appear.
[
;:~
'
""'
~
-r::
e
.3
(j
y
p
e
First erase this display. To do so, press the
~key.
"Ready
PO"
will vanish. Then
"....:' will begin blinking at the left end. This is called the "cursor" and indicates
the starting point for character writing.
RUN DEG
l
The state in which this cursor is blinking is called "key-input waiting state", -
namely, the blinking cursor indicates that the computer is waiting for a calcula-
tion or a command. The cursor is usually indicated by a blinking "_.!', but as
characters are written continuously, it sometimes changes to a blinking "
I ".
On this computer one line consists of up to 62 characters. The "
I "
symbol
appears as a warning signal when the number of written characters exceeds 5 5.
"BUZZER", "RUN" and "DEG" will probably appear at the top of the display.
These are called mode displays and indicate the state of the computer. "RUN"
indicates the RUN mode in which manual calculations and program execution
can be performed. "BUZZER" shows that the buzzer is on. The buzzer br-eps at
each key input. "DEG" shows that the angle unit is the degree. In addition,
other angle units are the radians ("RAD" lights up), which is specified by press-
ing
~~
, and the grads ("GRA" lights up) specified by pressing
~[§]
.
Be
careful about these angle units when handling a trigonometric function, inverse
trigonometric function or coordinate transformation. Once an angle unit is
specified, H remains in effect even when power is switched off.
The other modes displayed are the program writing mode ("WRT" lights up)
specified by pressing
~IIJ ,
the trace mode ("TRACE ON" lights up, see page