Define the model #.
From Which Model This Part Of Manual?
Started by
Guest_Sergei Frolov_*
, Mar 19 2008 06:47 PM
10 replies to this topic
#1
Guest_Sergei Frolov_*
Guest_Sergei Frolov_*
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Posted 19 March 2008 - 06:47 PM
This is a part of the old Casio calculator manual.
Define the model #.
Define the model #.
#3
Guest_Sergei Frolov_*
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Posted 19 March 2008 - 08:45 PM
No, on the Casio Mini the error is "all zeros".
#5
Xerxes
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Posted 21 March 2008 - 01:45 PM
It seems to be a scientific calculator because of the "DEG". But
is there no AC key to clear the error status?
is there no AC key to clear the error status?
#6
Guest_Sergei Frolov_*
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Posted 21 March 2008 - 08:11 PM
No, AC key can't clear this ERROR sign.
#7
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Posted 21 March 2008 - 10:20 PM
Probably FX-5/7/81? If not, a further hint maybe useful.
#8
Guest_Sergei Frolov_*
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Posted 22 March 2008 - 06:47 AM
This is the Casio fx-81. Very interesting calculator. It has not statictics functions on the manual, however really exists on the calculator.
All functions, which present on the fx-82 all present on the fx-81.
The ERROR sign on the FX-81 is the SD sign (statistics functions) on the fx-82 and mean not error but statistics mode. Of course, this ERROR sign can't be cleaned by AC key.
All functions, which present on the fx-82 all present on the fx-81.
The ERROR sign on the FX-81 is the SD sign (statistics functions) on the fx-82 and mean not error but statistics mode. Of course, this ERROR sign can't be cleaned by AC key.
#9
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Posted 22 March 2008 - 03:35 PM
Ok, I understand. Interesting behaviour of this calculator.
#10
Guest_Frederick_*
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Posted 13 November 2010 - 09:39 PM
This is the Casio fx-81. Very interesting calculator. It has not statictics functions on the manual, however really exists on the calculator.
All functions, which present on the fx-82 all present on the fx-81.
The ERROR sign on the FX-81 is the SD sign (statistics functions) on the fx-82 and mean not error but statistics mode. Of course, this ERROR sign can't be cleaned by AC key.
#11
Guest_Frederick_*
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Posted 13 November 2010 - 09:48 PM
This is the Casio fx-81. Very interesting calculator. It has not statictics functions on the manual, however really exists on the calculator.
All functions, which present on the fx-82 all present on the fx-81.
The ERROR sign on the FX-81 is the SD sign (statistics functions) on the fx-82 and mean not error but statistics mode. Of course, this ERROR sign can't be cleaned by AC key.
There's a catch: I think the stat functions are wrong.
I was given an fx-81 in high school in the 80's. Somewhere along the line I discovered the hidden functionality by comparing it with a friend's more advanced calculator (probably an 82). All through college I cleverly used the hidden stat functions in my lab classes. After graduation, one day when I was reading through (iirc) alt.folklore.computers, I got into a conversation about the fx-81. I talked about how I used its hidden stat functions, and then someone who had been involved in the production chimed in.. turns out, the initial run of the chip had a bug that made it miscalculate the stat results. Rather than tossing them, they used those chips to make a downgraded version of the calculator.
All that time I thought I was being clever by accessing the hidden capacity of my calculator .. but my results were subtly wrong.
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