HP 39gs_40gs_Mastering The Graphing Calculator_English_E_F2224-90010

The SETUP views

The

ALPHA key gives access to the alphabetical characters, shown below and

right of most keys. Pressing

SHIFT ALPHA gives lower case.

Calculator Tip

ALPHA

menu. Some

If you press and hold down the key you can ‘lock’ alpha mode,

although this doesn’t work for lower case. Many people use this to type

in functions by hand rather than going through the

MATH

views, such as the Notepad, also offer a screen key function that lets

you lock either upper or lower case alpha mode.

The

SETUP views, above PLOT, SYMB and NUM, are used to customize

their respective views. For example, the

PLOT SETUP screen controls things

like axes, labels etc. Their use changes in different aplets, so for more

information see the explanations in the chapters dealing with the various

aplets, particularly in the Function aplet on page

50.

The

SYMB SETUP key is only used in one place, which is to choose the data model for bivariate statistics in

the Statistics aplet. It is not available in the other aplets and trying to access it will result only in a quick flash

of an exclamation mark on the screen to say “You’ve done something wrong!”.

Information on the use of the

SKETCH and NOTE views (located above the APLET

and

VIEWS keys) can be found in the chapters “Working with Sketches” and

“Working with Notes & the Notepad” on pages 222 & 217.

The main use for the

SKETCH and NOTE views is in aplets downloaded from the Internet. Instructions for

using the aplet are sometimes included with the aplet in note form, and sometimes as an accompanying

sketch.