11-6
Base Conversions and Arithmetic and Logic
The Representation of Numbers
Although the
display
of a number is converted when the base is changed, its stored
form is not modified, so decimal numbers are not truncated — until they are used in
arithmetic calculations.
When a number appears in hexadecimal, octal, or binary base, it is shown 36 bits
(12 octal digits or 9 hexadecimal digits). Leading zeros are not displayed, but they
are important because they indicate a positive number. For example, the binary
representation of 125
10
is displayed as:
1111101b
which is the same as these 36 digits:
000000000000000000000000000001111101b
Negative Numbers
The leftmost (most significant or "highest") bit of a number's binary representation is
the sign bit; it is set (1) for negative numbers. If there are (undisplayed) leading
zeros, then the sign bit is 0 (positive). A negative number is the 2's complement of
its positive binary number.
(
)
(
)
b
Changes to base 2;
BIN
annunciator on. This
terminates digit entry, so no
is needed between
the numbers.
Result in binary base.
(
)
Result in hexadecimal base.
(
)
Restores decimal base.
Keys:
Display:
Description:
(
)
Enters a positive, decimal
number; then converts it to
hexadecimal.
Содержание 35s
Страница 1: ...HP 35s scientific calculator user s guide H Edition 1 HP part number F2215AA 90001 ...
Страница 14: ...12 Contents ...
Страница 15: ...Part 1 Basic Operation ...
Страница 16: ......
Страница 46: ...1 30 Getting Started ...
Страница 63: ...RPN The Automatic Memory Stack 2 17 A Solution ...
Страница 64: ...2 18 RPN The Automatic Memory Stack ...
Страница 74: ...3 10 Storing Data into Variables ...
Страница 180: ...12 14 Statistical Operations ...
Страница 181: ...Part 2 Programming ...
Страница 182: ......
Страница 246: ...15 12 Solving and Integrating Programs ...
Страница 270: ...16 24 Statistics Programs ...
Страница 284: ...17 14 Miscellaneous Programs and Equations ...
Страница 285: ...Part 3 Appendixes and Reference ...
Страница 286: ......
Страница 308: ...B 8 User Memory and the Stack ...
Страница 322: ...C 14 ALG Summary ...
Страница 336: ...D 14 More about Solving ...
Страница 346: ...E 10 More about Integration ...
Страница 352: ...F 6 Messages ...
Страница 370: ...G 18 Operation Index ...
Страница 382: ...Index 12 ...