Representation Of Numbers - HP -225 Owner's Manual

Scientific calculator
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Convert 24FF¢ to binary base.
B (BASE] {HX}
7D
Sets hexadecimal base.
24FF @(BASE] {BN}
818011111111
Converts 24FF¢ to bi-
nary base and displays
least significant 12
digits.
{+} (G=] key)
18
Displays the digits
to the left. The
full number is
10010011111111,.
{=} (4] key)
18811111111
Displays the least sig-
nificant digits.
@(BAsE] {DEC}
9,471.0000
Restores decimal base.
Representation of Numbers
Decimal numbers are stored internally as a 12-digit mantissa with a
3-digit exponent. When a numberis converted from its decimal value
to a different base, the integer part of the number is represented as a
36-bit, binary number. The leftmost (most significant) bit is the sign
bit; it is set (1) for negative numbers.
Negative Numbers. The leftmost bit of the binary representation of
a numberis the sign bit. It is set to 1 for negative numbers. Negative
numbers are represented internally as the 2's Complement of the pos-
itive binary number.
Keys:
Display:
Description:
8738 B[BASE| {HX}
2222
Converts 8,738, to
hexadecimal base.
L
FFFFFDDDE
2's Complement.
B(BAsE] {DEC}
-8,738.0000
Negative decimal
number.
56
4: Base Conversions and Base Arithmetic

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