Casio fx-50F Manual De Usuario

E-72

7

Multiplication, Division

Omitted Multiplication Sign

×, ÷

Multiplication sign can be omitted immediately 

before 

 π,

, variables, scientifi c constants (2

 π, 5A, 

 πA, 3mp, 2

, etc.), and parenthetical functions 

(2

'(3), Asin(30), etc.)

8

Addition, Subtraction

+, −

9

Relational Operators

=, 

≠, >, <, >, <

10

Logical Product

and

11

Logical Sum, Exclusive Logical 
Sum, Exclusive Negative 
Logical Sum

or, xor, xnor

Note
•  If a calculation contains a negative value, you may need to enclose the negative value in 

parentheses. If you want to square the value –2, for example, you need to input: (–2) 

2

. This is 

because

2

 is a function preceded by a value (Priority 2, above), whose priority is greater than the 

negative sign, which is a prefi x symbol (Priority 4). 

    

-cxw  

–2 

2

 = –4

    (

-c)xw 

(–2) 

2

 = 4 

•  Multiplication and division, and multiplication where the sign is omitted are the same priority 

(Priority 7), so these operations are performed from left to right when both types are mixed in the 
same calculation. Enclosing an operation in parentheses causes it to be performed fi rst, so the 
use of parentheses can result in different calculation results. 

    b

$

c

.(

)

w 

1 

{

 2 

 =

1

2

    b

$

(c

.(

))

w  1 

{

 (2 

) = –

1

2

k Stack Limitations 

This calculator uses memory areas called “stacks” for temporary storage of lower calculation priority 
sequence values, commands, and functions. The “numeric stack” has 10 levels and the “command 
stack” has 24 levels as shown in the illustration below. 

A Stack ERROR occurs when the calculation you are performing causes the capacity of a stack to 
be exceeded. 

1

2

3

4

5

1 2 3

4

5

6

7

1

2

3

4

5

1 2 3

4

5

6

7

1

2

3

4

5

1

2

3

4

5

6

7

1

2

3

4

5

1

2

3

4

5

6

7