Casio fx-CG20 Manual De Usuario

CASIO

2-1

k Arithmetic Calculations

  • Enter arithmetic calculations as they are written, from left to right.

  • Use the  

- key to input the minus sign before a negative value.

  • Calculations are performed internally with a 15-digit mantissa. The result is rounded to a 10-

digit mantissa before it is displayed.

  • For mixed arithmetic calculations, multiplication and division are given priority over addition 

and subtraction. 

 56 × (–12) ÷ (–2.5) = 268.8 

  56  *

-12  /-2.5  w

 (2 + 3) × 10 

2 

 = 500 

(2  +3  )*1  

E2  w

 2 + 3 × (4 + 5) = 29 

  2  +3  *(4  +5  

w* 

1  

 

4 × 5

6

 = 

10

3

 (0.3)  

$6c4*5w
<Linear input/output mode>
  6  /(4  *5  )

w

  * 

1 

  Final closed parentheses (immediately before operation of the  

w key) may be omitted, no 

matter how many are required. 

k Number of Decimal Places, Number of Significant Digits, Normal 

[SET UP]  -     

-  [Fix] 

  • Even after you specify the number of decimal places or the number of significant digits, 

internal calculations are still performed using a 15-digit mantissa, and displayed values are 
stored with a 10-digit mantissa. Use Rnd of the Numeric Calculation Menu (NUMERIC) (page 
2-14) to round the displayed value off to the number of decimal place and significant digit 
settings.

  • Number of decimal place (Fix) and significant digit (Sci) settings normally remain in effect 

until you change them or until you change the normal display range (Norm) setting.