Casio fx-5800P User Manual page 53

Display Digit Setting: Norm1 or Norm2
The mantissa is rounded off to 10 digits.
Display Digit Setting: Fix or Sci
The value is rounded to the specifi ed number of digits.
Example: 200 ÷ 7 × 14 = 400
(3 decimal places)
(Internal calculation uses 15 digits.)
Now perform the same calculation using the rounding (Rnd) function.
(Calculation uses rounded value.)
(Rounded result)
A Integer Part Extraction (Int)
The Int( function extracts the integer part of the real number input as its argument.
200/7*14
(SETUP) 6 (Fix) 3
200/7
*14
o200/7
0 (Rnd)
*14
E-52