beautypg.com

HP 39g Graphing Calculator User Manual

Page 34

Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".

background image

Example

See how |

shift

[/j/vs

retrieves and reuses the last result

(50),

and I

ENTER

I updates

ANS

(from

50

to

75

to

100).

50|

enter

| [T| 25

I

ENTER 11

enter

!

i035T FUNCTION*

,"0,

50

flns+25

75

100

You can use the last result as the first expression in the edit
line without pressing |

shift

\

ans

.

Pressing (+], Q, fx], or

pT], (or other operators that require a preceding argument)

automatically enters

ans

before the operator.

You can reuse any other expression or value in the HOME

display by highlighting the expression (using the arrow keys),
then pressing fflU. See “Using previous results” on page 1-

21

for more details.

The variable

ANS

is different from the numbers in HOME’S

display history. A value in

ANS

is stored internally with the full

precision of the calculated result, whereas the displayed

numbers match the display mode.

HINT When you retrieve a number from

ANS,

you obtain the result

to its full precision. When you retrieve a number from the

home

s

display history, you obtain exactly what was

displayed.

Pressing I

ENTER

I evaluates (or re-evaluates) the last input,

whereas pressing

|sHlFT]/iA''y

copies the last result (as

ANS)

into

the edit line.

1-22

Getting started