HP 300s Scientific Calculator - Manual (Page 14)

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Example: 1 ÷ 7 = 1.4286 ✕ 10 -1 (Sci5)
1.429 ✕ 10 -1 (Sci4)
Norm: Selecting one of the two available settings (Norm 1,
Norm 2) determines the range in which results will be
displayed in non-exponential format. Outside the specified
range, results are displayed using exponential format.
Norm 1:10 -2 > , ≥ 10 10
Norm 2: 10 -9 > , ≥ 10 10
Example:1 ÷ 200 = 5 ✕ 10 -3 (Norm1)
0.005 (Norm2)
Specifying the Fraction Format
Specifying the Statistical Display Format
Use the following procedure to turn display of the frequency
(FREQ) column of the STAT Mode STAT editor screen on or off.
Specifying the Decimal Point Display Format
The setting you configure here is applied for calculation results
only. The decimal point for input values is always a dot (.).
Initializing the Calculation Mode and Other
Settings
Performing the following procedure initializes the calculation
mode and other setup settings as shown below.
  (CLR)  (Setup)  (Yes)
To specify this fraction format: Perform this key operation:
Mixed     (a b/c)
Improper     (d/c)
To specify this: Perform this key operation:
Show FREQ Column     (STAT)  (ON)
Hide FREQ Column     (STAT)  (OFF)
To specify this decimal
point display format: Perform this key operation:
Dot(.)     (Disp)  (Dot)
Comma(,)     (Disp)  (Comma)
x x
x x