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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.
BUZZER
RUN DEG
Pa
First erase this display. To do so, press the &3 key. "Ready PQ" will vanish. Then
"2 will begin blinking at the left end. This is called the "cursor" and indicates
the starting point for character writing.
BUZZER
RUN DEG
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 " & ".
On this computer one line consists of up to 62 characters. The " § " symbol
appears as a warning signal when the number of written characters exceeds 55.
"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 beeps 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 @=(S) , and the grads ("GRA" lights up) specified by pressing ([6)
. Be
careful about these angle units when handling a trigonometric function, inverse
trigonometric
function
or coordinate transformation. Once an angle unit is
specified, it remains in effect even when power is switched off.
The other modes displayed are the program writing mode ("WRT" lights up)
specified by pressing @J(1) , the trace mode ("TRACE ON" lights up, see page
2-7
Let's Operate the Computer
104) specified by pressing &=j(@) , the printer output mode ("PRT ON" lights up,
see page 113) specified by pressing l[7), the MEMO
IN mode for the DATA
BANK function ("fq(uy)" lights up, see page 212)specified by pressing f=) and
the extension mode ("EXT" lights up) specified by pressing
You will Jearn these as you become familiar with the computer.
Now actually press the keys to display the modes. If a confusion has arisen in
mdde display, switch the power supply off and then on again.
xT}
First try a simple calculation.
Example:
123+456=579
Press (5) .
Press keys according to the above equation.
NEBr
BEs
Lea+4i6.
Then press (¢) instead of (=) to find the answer.
on od
ci
exe]
The calculation is as simple as with an ordinary calculator, isn't it?
Now make a calculation including both multiplication and addition.
Example:
33X5+16=181
Here it is assumed that 34 has been input by mistake instead of 33.
3EWSBawWs)
15
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