Base conversions and arithmetic – HP 33s User Manual
Page 139
Base Conversions and Arithmetic
10–1
10
Base Conversions and Arithmetic
The BASE menu (
{ x
) lets you change the number base used for entering
numbers and other operations (including programming). Changing bases also
converts the displayed number to the new base.
BASE Menu
Menu label
Description
{}
Decimal mode. No
annunciator. Converts numbers to
base 10. Numbers have integer and fractional parts.
{%}
Hexadecimal mode. HEX
annunciator on. Converts
numbers to base 16; uses integers only. The top–row keys
become digits
%
through
*
.
{ !}
Octal mode. OCT
annunciator on. Converts numbers to
base 8; uses integers only. The
,
, and unshifted
top–row keys are inactive.
{}
Binary mode. BIN
annunciator on. Converts numbers to
base 2; uses integers only. Digit keys other than
and
, and the unshifted top–row functions are inactive. If a
number is longer than 12 digits, then the
and
keys are active for viewing windows. (See "Windows for
Long Binary Numbers" later in this chapter.)
Examples:
Converting the Base of a Number.
The following keystrokes do various base conversions.
Convert 125.99
10
to hexadecimal, octal, and binary numbers.
Keys:
Display:
Description:
125.99
{ x
{%}
Converts just the integer part
(125) of the decimal number to
base 16 and displays this value.
{ x
{ !}
Base 8.