HP 39g+ User Manual page 15

Entry/Edit keys
Getting started
The entry and edit keys are:
Key
)
(
CANCEL
CLEAR
, , ,
Meaning
Cancels the current operation if the
calculator is on by pressing
Pressing , then
calculator off.
Accesses the function printed in blue
above a key.
Returns to the HOME view, for
performing calculations.
Accesses the alphabetical
characters printed in orange below
a key. Hold down to enter a string
of characters.
Enters an input or executes an
operation. In calculations,
acts like "=". When
is present as a menu key,
acts the same as pressing
.
Enters a negative number. To enter
–25, press 25. Note: this is not
the same operation that the subtract
button performs (
Enters the independent variable by
inserting X, T, θ, or N into the edit
line, depending on the current
active aplet.
Deletes the character under the
cursor. Acts as a backspace key if
the cursor is at the end of the line.
Clears all data on the screen. On a
settings screen, for example Plot
Setup,
CLEAR
settings to their default values.
Moves the cursor around the
display. Press
the beginning, end, top or bottom.
.
turns the
OFF
or
or
).
returns all
first to move to
1-5