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Integer manipulation – HP Prime Graphing Calculator User Manual

Page 583

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Basic Integer arithmetic

579

Integer manipulation

The result of integer arithmetic can be further analyzed, and
manipulated, by viewing it in the

Edit Integer

dialog.

1. In Home view, use the cursor keys to select the result of

interest.

2. Press

Sw

(Base).

The

Edit Integer

dialog

appears. The

Was

field at

the top shows the result you
selected in Home view.
The hex and decimal
equivalents are shown
under the

Out

field,

followed by a bit-by-bit
representation of the integer.
Symbols beneath the bit representation show the keys you
can press to edit the integer. (Note that this doesn’t change
the result of the calculation in Home view.) The keys are:

<

or

>

(Shift): these keys shift the bits one space to the

left (or right). With each press, the new integer

represented appears in the

Out

field (and in the hex and

decimal fields below it).

=

or

\

(Bits): these keys increase (or decrease) the

wordsize. The new wordsize is appended to the value

shown in the

Out

field.

Q

(Neg): returns the two’s complement (that is, each

bit in the specified wordsize is inverted and one is

added. The new integer represented appears in the

Out

field (and in the hex and decimal fields below it).

+

or

w

(Cycle base): displays the integer in the

Out

field in another base.

Menu buttons provide some additional options:

: returns all changes to their original state
: cycles through the bases; same as pressing

+

: toggles the wordsize between signed and unsigned
: returns the one’s complement (that is, each bit in the

specified wordsize is inverted: a 0 is replaced by 1 and a 1