HP 49g Graphing Calculator - Manual (Page 80)

Binary integers are displayed on the HP 49G
with a space after the # sign. You do not need
to enter a space when creating a binary
integer.
If you specify a base other than the current
base setting, the HP 49G converts the binary
integer you entered to an integer to the base of the current setting. If you
want to see the binary integer you entered, press 0 @D).
For example, if your cmTent base setting is hexadecimal and you enter
# 1101b, the calculator displays your entry as # Dh. To see your entry,
press 0 (CMP). Your entiy is at the top of the list of last four executed
commands.
Binary integer arithmetic
To add, subtract, multiply, or divide two binary integers
1. Enter the first binary integer.
2. Press the key for the operation you want to perfonn: ©
0 0
or
0.
3. Enter the second binary integer.
4. Press dH).
In RPN mode: follow steps 1, 3, and 2.
The two binaiy integers do not have to be to the same base.
The answer is expressed in the cuiTent base setting, and the two
arguments are converted to that setting.
Note that any remainder from a division is lost and the answer is
tmncated to be an integer.
To find the negative of a binary integer
1. Press (C0 NEG.
2. Enter the binary integer.
3. Press (H r ).
In RPN mode: follow steps 2 and 1.
The negative of a binary number is its two’s complement (all bits inverted
and 1 added).
Number bases Page 8-3