HP 39gs_40gs_Mastering The Graphing Calculator_English_E_F2224-90010

Increasing-powers mode
When Increasing-powers mode is selected, polynomials will be listed so that the terms will have
increasing powers of the independent variable (which is the opposite to how polynomials are
normally written). [Default: unselected.]
Comment: Who cares really?
Rigorous setting
When Rigorous mode is selected, any algebraic expression of the form |X|, i.e., the absolute value
of X, is not simplified to X. [Default: selected.]
Comment: Your choice here really depends entirely on the problem at the time.
Simplify non-rational setting
When Simplify non-rational mode is selected, non-rational expressions will be automatically
simplified. [Default: selected.]
Comment: When this mode is not selected an expression such as the
one shown right will not be simplified. When selected, it
simplifies to ¼. I suggest that this is generally more
desirable!
Calculator Tip
of the CAS. ly it
in the introduction to this appendix on page 324.
g
i
) and pressing
.
Changing the configuration can have a profound effect on the behavior
Before you play with these configurations too extensive
is suggested that you read carefully the relevant information in the
manual and/or the information in Renée de Graeve’s book mentioned
Remember that you can always return to the default confi urat on simply
by going into the configuration view (
SHIFT MODES
SHIFT CLEAR
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