Mathematical Calculations - HP 39gs User Manual

To change views
To save aplet
configuration

Mathematical calculations

Where to start
Entering
expressions
Getting started
Each view is a separate environment. To change a view,
select a different view by pressing
keys or select a view from the VIEWS menu. To change
to HOME, press
current view, you just enter another one—like passing
from one room into another in a house. Data that you
enter is automatically saved as you enter it.
You can save an aplet configuration that you have used,
and transfer the aplet to other HP 39gs calculators. See
"Creating new aplets based on existing aplets" on
page 19-1.
The most commonly used math operations are available
from the keyboard. Access to the rest of the math
functions is via the MATH menu (
To access programming commands, press
See "Programming commands" on page 18-13 for
further information.
The home base for the calculator is the HOME view
( ). You can do all calculations here, and you can
access all
•
Enter an expression into the HP 39gs in the same left-
to-right order that you would write the expression.
This is called algebraic entry.
•
To enter functions, select the key or MATH menu item
for that function. You can also enter a function by
using the Alpha keys to spell out its name.
•
Press to evaluate the expression you have in
the edit line (where the blinking cursor is). An
expression can contain numbers, functions, and
variables.
. You do not explicitly close the
operations.
, ,
).
.
CMDS
1-19