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Equation Writer 15-3
REWRI menu The menu contains
functions that enable you to
rewrite an expression in
another form.
SOLV menu The menu contains
functions that enable you to
solve equations, linear
systems, and differential
equations.
TRIG menu The menu contains
functions that enable you to
transform trigonometric
expressions.
NOTE
You can get online help about any CAS function by
pressing 2 and selecting that function (as
explained in “Online Help” on page 14-8).
Configuration menus
You can directly see, and change, CAS modes while
working with the Equation Writer. The first line in each of
the Equation Writer menus (except ) indicates the
current CAS mode settings.
In the example at the right,
the first line of the
menu reads:
CFG R= X S
CFG stands for
“configuration”, and the symbols to the right of it indicate
various mode settings.
The first symbol, R, indicates that you are in real
mode. If you were in complex mode, this symbol
would be C.
The second symbol, =, indicates that you are in exact
mode. If you were in approximate mode, this symbol
would be ~.
The third symbol, X in the above example, indicates
the current independent variable.
hp40g+.book Page 3 Friday, December 9, 2005 1:03 AM
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