HP 35s User Manual

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.


HP 35s Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Black
Digits	14 digits
Display number of lines	2 lines
Keyboard type	Alphanumeric
Menus and prompts	Yes

Weight and Dimensions

Dimensions (WxDxH)	157.9 x 18 x 82 mm