What Is The Key (-) Good For?
#1
Posted 14 December 2005 - 05:07 PM
I know it is used to enter negative numbers. But this can be also achieved by the key .
Does anybody know a situation, where really behaves different then ?
Casio FX-991MS, Casio FX-991ES
#2
Posted 14 December 2005 - 05:22 PM
#3
Posted 14 December 2005 - 05:59 PM
yep. you cant do 5' />2' />
Right
I should have been more precise:
Does anybody know a situation, where really is needed and can't be replaced by ?
#4 Guest_Guest_*
Posted 14 December 2005 - 07:49 PM
Right
I should have been more precise:
Does anybody know a situation, where really is needed and can't be replaced by ?
Yes ...
You can simply do (-) 2 to get a result of -2
Or
2^(-)2 to get a result of .25
The point is ... It's mathumatically more correct !
#5
Posted 14 December 2005 - 09:24 PM
But you can just type -2 to get the same result.You can simply do (-) 2 to get a result of -2
But you can just type 2^-2 to get the same result.Or 2^(-)2 to get a result of .25
In my opinion Casio is wasting valuable space with this extra key.
#6
Posted 15 December 2005 - 01:39 PM
for example:
first I want to know 1+1
1' />1' />EXE' /> -> result 2
then I want to know -7+2
7' />2' />EXE' /> -> result = -3
while
7' />2' />EXE' /> -> result = -5
So the/a difference is that when you use - it will automatically add 'Ans' and if you use (-) it won't.
#7
Posted 15 December 2005 - 03:16 PM
Yes, good point.I sometimes use it for doing 2 calculations and so it doesn't use 'Ans' in the second calculation.
#8 Guest_Guest_*
Posted 16 December 2005 - 08:15 PM
Yes, good point.
Yes, thats a VERY good point - Well done.
#9
Posted 17 December 2005 - 04:59 PM
ThanksYes, good point.
#10 Guest_Guest_*
Posted 17 December 2005 - 06:03 PM
Thanks
Your welcome
#11
Posted 01 January 2006 - 09:05 AM
try doing negative square roots or adding negatives to negatives
#12
Posted 02 January 2006 - 03:22 PM
This short minus is the only access to inverse space character.I used it in old good times of fx7700GB.I am wondering, what the key is good for.
I know it is used to enter negative numbers. But this can be also achieved by the key .
Does anybody know a situation, where really behaves different then ?
Casio FX-991MS, Casio FX-991ES
See more at http://www.rkk.cz/~m...ls/FX7700GB.TXT
#13
Posted 02 January 2006 - 08:56 PM
-> unary negation
#14 Guest_Guest_*
Posted 03 January 2006 - 01:12 PM
-> subtraction operator
-> unary negation
A recent poll found 99% of people use the key for subtraction and the for unary negation.
The remaining 1% were art students.
Nuff said.
#15
Posted 03 January 2006 - 11:19 PM
#16
Posted 04 January 2006 - 05:41 PM
A recent poll found 99% of people use the key for subtraction and the for unary negation.
The remaining 1% were art students.
Nuff said.
or Media Studies Students
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