15 replies to this topic

[raga]

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

[Andy.Davies]

yep. you cant do 5' />2' />

[raga]

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 ?

[raga]

You can simply do (-) 2 to get a result of -2

But you can just type -2 to get the same result.

Or 2^(-)2 to get a result of .25

But you can just type 2^-2 to get the same result.

In my opinion Casio is wasting valuable space with this extra key.

[whizz]

I sometimes use it for doing 2 calculations and so it doesn't use 'Ans' in the second calculation:

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.

[raga]

I sometimes use it for doing 2 calculations and so it doesn't use 'Ans' in the second calculation.

Yes, good point.

[whizz]

Yes, good point.

Thanks

[KUEI]

(-) makes the number negative.
try doing negative square roots or adding negatives to negatives

[Martin]

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

This short minus is the only access to inverse space character.I used it in old good times of fx7700GB.
See more at http://www.rkk.cz/~m...ls/FX7700GB.TXT

[TacoFred]

-> subtraction operator
-> unary negation

[TacoFred]

[Andy.Davies]

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