4
ENG5640.DOC TI-5640 Guidebook, English for Americas Texas
Instruments Inc Revised: 05/23/00 4:43 PM Printed: 06/22/00
5:31 PM Page 4 of 8
ENG5640.DOC TI-5640 Guidebook, English for Americas Texas
Instruments Inc Revised: 05/23/00 4:43 PM Printed: 06/22/00
5:31 PM Page 4 of 8
Clearing Errors and Overflows
Correcting Entry Errors
If you have not pressed an operation key:
•
To clear an incorrect entry, press
I
.
•
To clear the last digit, press
(
.
If you have pressed an operation key:
•
To cancel an incorrect entry, press the opposite operation key. This
applies only to calculations involving
9
,
.
,
N,
or
F
.
Error and Overflow Conditions and Indicators
If you divide by zero or calculate a selling price using a margin of 100%, an
error occurs. The calculator prints
0 .*
and displays
ERROR
and
0
.
An overflow occurs if you calculate a result with too many digits for the
calculator to display or print. When this occurs, the calculator:
•
Displays
E
and the first 12 digits of the result with a decimal point 10
places to the left of its correct position.
•
Prints
ERROR
and the first 12 digits of the result with the decimal shifted
10 places to the left of its correct position.
To clear an error or overflow,
press
I
. The memory is not cleared unless
the error or overflow occurred in a memory calculation.