HP 39g+ - Manual (Page 15)

Getting started 1-5
Entry/Edit keys
The entry and edit keys are:
Key Meaning
( CANCEL ) Cancels the current operation if the
calculator is on by pressing
.
Pressing , then OFF turns the
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 or
is present as a menu key,
acts the same as pressing or
.
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.
CLEAR
Clears all data on the screen. On a
settings screen, for example Plot
Setup,
CLEAR returns all
settings to their default values.
, , , Moves the cursor around the
display. Press first to move to
the beginning, end, top or bottom.