Copyright © Lexibook 2003
6
8.
Using the results from two calculations: “ANS/CHECK”
Comparing the results from two calculations:
The “
ANS/CHECK
” key allows you to view the result from the one before last
calculation, and also that of the last calculation. Make two calculations ending with
“
=
”, then press on “
ANS/CHECK
“ in order to obtain the result from the one before last
calculation, and press once more on “
ANS/CHECK
“ to get the last calculation.
Re-using the result from the last calculation:
The calculator will show the message “
ERROR
” in the following cases.
-
When dividing by zero
- In calculations where the result exceeds the capacity of the calculator.
In order to delete the error message and any other calculations, press “
ON/C
”.
Important notes
Example
Press
Display
First calculation: 10 + 20 - 5
10 + 20 - 5 =
25 GT
Second calculation: 100 -25
100 - ANS/CHECK =
75 GT
Example
Press
Display
The one before last calculation:
5 x 10 – 20 =
30 GT
The last calculation:
5 x 20 – 20 =
80 GT
Bring back the one before last result
ANS/CHECK
30 CHECK
Bring back the last result
ANS/CHECK
80 ANS
Example
Press
Display
Calculation made: 20 + 10 – 5 x 2 ÷ 5
Calculation to be amended: 20 -5 -5 x 3 ÷ 5
▼
▼
CORRECT
- 5
▼
▼
3
CORRECT
▼
▼
20 REV
+ 10 REV
+ 10 CRT
- 5 CRT
- 5 CRT
x 2 CRT
x 3 CRT
x 3 REV
÷ 5 REV
= 6 REV
Содержание PLC490
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