HP 39g+ - Manual (Page 31)

Getting started 1-21
Clearing
numbers
•
>'(/@
clears the character under the cursor. When the
cursor is positioned after the last character, >'(/@ deletes
the character to the left of the cursor, that is, it performs
the same as a backspace key.
• CANCEL (
>21@) clears the edit line.
•
>6+,)7@
CLEAR clears all input and output in the display,
including the display history.
Using
previous
results
The HOME display (
>+20(@) shows you four lines of input/
output history. An unlimited (except by memory) number of
previous lines can be displayed by scrolling. You can retrieve
and reuse any of these values or expressions.
When you highlight a previous input or result (by pressing
*k,), the
8PQ`— and TCPX— menu labels appear.
To copy a
previous line Highlight the line (press *k,) and press
8PQ`— . The number (or
expression) is copied into the edit line.
To reuse the last
result Press
>6+,)7@
ANS (last answer) to put the last result from the
HOME display into an expression. ANS is a variable that is
updated each time you press
>(17(5@.
To repeat a
previous line To repeat the very last line, just press
>(17(5@. Otherwise,
highlight the line (press
*k,) first, and then press >(17(5@. The
highlighted expression or number is re-entered. If the
previous line is an expression containing the
ANS , the
calculation is repeated iteratively.
Output
Last output
Input
Last input
Edit line