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Explanation Of Cas Settings - HP 50g User Manual

Graphing calculator.
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Non-Rational options above). Unselected options will show no check
mark in the underline preceding the option of interest (e.g., the
_Numeric, _Approx, _Complex, _Verbose, _Step/Step, _Incr Pow
options above).
• After having selected and unselected all the options that you want in
the CAS MODES input form, press the @@@OK@@@ soft menu key. This will
take you back to the CALCULATOR MODES input form. To return to
normal calculator display at this point, press the @@@OK@@@ soft menu key
once more.

Explanation of CAS settings

• Indep var: The independent variable for CAS applications. Typically,
VX = 'X'.
• Modulo: For operations in modular arithmetic this variable holds the
modulus or modulo of the arithmetic ring (see Chapter 5 in the
calculator's user's guide).
• Numeric: If set, the calculator produces a numeric, or floating-point
result, in calculations. Note that constants will always be evaluated
• Approx: If set, Approximate mode uses numerical results in calculations.
If unchecked, the CAS is in Exact mode, which produces symbolic
results in algebraic calculations.
• Complex: If set, complex number operations are active. If unchecked
the CAS is in Real mode, i.e., real number calculations are the default.
See Chapter 4 for operations with complex numbers.
• Verbose: If set, provides detailed information in certain CAS
• Step/Step: If set, provides step-by-step results for certain CAS
operations. Useful to see intermediate steps in summations, derivatives,
integrals, polynomial operations (e.g., synthetic division), and matrix
• Incr Pow: Increasing Power, means that, if set, polynomial terms are
shown in increasing order of the powers of the independent variable.
• Rigorous: If set, calculator does not simplify the absolute value function
|X| to X.
• Simp Non-Rational: If set, the calculator will try to simplify non-rational
expressions as much as possible.
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