Tips & Tricks - Cas - HP 39g Master Manual

Pressing takes you out of the CFG menu (as does choosing QUIT from
the menu and confirming it with
have made.
The name of the current variable, as
well as the value of the variable
MODULO, can be changed by means
of the SHIFT SYMB view, or by
using the VARS key. Many of the
configurations addressed in the CFG menu are
also referenced in these views.
Press ON to exit the VARS configuration view.
T i p s & T r i c k s -
T i p s & T r i c k s -
1) In CAS, angles are always expressed in radians. When you are the
calculator HOME screen, you can use the MODES view to change this
default but this does not affect the CAS.
2) Step by step mode is quite useful for students. Choose Step by
step mode to view the details of the calculations, displayed on the
screen. After each step you are requested to press
next stage. The alternative is Direct mode, in which only the result is
displayed.
3) Incredible as it may seem, the CAS is capable of infinite precision when
manipulating integers (memory permitting). To see this in action try
evaluating 200 factorial and then press VIEWS. You can now scroll
through all 375 digits of the result!
Calculator Tip
Changing the configuration can have a profound effect on
the behavior of the CAS. Only minimal information has
been given here, and before you play with these
configurations too extensively it is suggested that you read
carefully the relevant information in the manual and/or the
information in Renée de Graeve's book mentioned in the
introduction to this appendix on page 310.
C A S
C A S
) but does not discard any changes you
330
to proceed to the