5
1-5045~1.DOC English 1 Erin Williams Revised: 06/22/00 3:36 PM Printed: 06/22/00 4:06 PM
Page 5 of 6
AUTOMATIC FEATURES
Repeat operation:
Allows you to repeat an operation using the same number without re-entering it.
Press
9
,
.
,
?
or
'
as often as the number is to be repeated.
Ex.
N
5 + 3 + 3 + 3
Press:
5
.
3
9
9
9
E
Answer:
4
Ex.
20
Q
12
Q
12
Press:
20
?
12
?
3
Answer:
2,880
Constant:
In a simple multiplication problem, the first number entered is automatically taken as the
constant. When
?
or
'
is used more than once in a sequence ending with a multiplication, the
constant is a composite multiplicand. This number is shown in the display the last time
?
is pressed.
In a division problem, or in a mixed sequence ending with a division, the last number entered is taken
as the constant. The constant is cleared by entering a new multiplication or division problem, or by
pressing
2
.
Ex.
5
Q
3 = 15; 5
Q
9
Press:
5
?
3
3
9
3
Answers:
15; 45
Ex.
66
P
3
= 22;
N
90
P
3
Press:
66
'
3
3
90
.
3
Answers:
22;
N
30
Ex.
495 +
20% = 594; 495 + 60%
Press:
495
?
20
>
9
60
>
9
Answers:
594; 792
The constant can be used to find a reciprocal or to raise a number to a power.
Ex.
1
P
(8 + 12)
Press:
8
9
12
9
E
'
3
3
Answer:
0.05
Ex.
12
Q
12
Press:
12
?
3
Answer:
144
Ex.
12
3
Press:
12
?
3
3
Answer:
1,728
ERROR / OVERFLOW
An error or an overflow condition is indicated by an
E
at the left of the display. All keys except
I
and
2
are then inoperative. To continue the calculation, press
I
. To clear the calculator completely,
press
2
0
2
.
An error condition occurs when any number is divided by zero. An overflow condition occurs when an
accumulated total or result has more than 12 digits to the left of the decimal point.
IN CASE OF DIFFICULTY
¦
Be sure the power cord is properly connected and the POWER switch is set to PRT. If the
calculator still does not power-up, try a different wall outlet.
¦
If you are getting calculation errors or if the calculator does not respond to keyboard entries:
1. Press
2
0
2
. The display should be 0.
2. Check the switch settings. The most common positions are:
POWER:
PRT,
ROUND:
5/4,
DECIMAL:
2,
TAX:
CALC.
3. Turn the POWER switch off for 10 seconds, then on and try the calculation again.
¦
If you are getting a faint printout or none at all:
1. Be sure the POWER switch is set to PRT, IC, or GT.
2. Check the ink roller for proper installation and sufficient ink supply. Replace or reinstall as
indicated.
If none of the above procedures corrects the difficulty, make a last check with a new ink roller before
returning the calculator for service to your Texas Instruments retailer.
To Next Page
Loading...
Need help?
General
