Hp 49g Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 114)

For example, consider the expression sin (x^ + 2x).

If the value for variable X is defined as in the current path:

® When the Approx option is set, evaluating the expression retiu-ns

-.586176193022

® Wlien Approximate mode is clear, evaluating the expression returns

SIN(4V2).

Other options

hi addition to the above options, the CAS Modes input fomi is used to set

the following parameters;

® Independent variable

The independent variable is the default variable that the calculator

uses for operations such as differentiation and integration. The default

value is X.

® Modulo

Enter the modulus that you want to use m modulo arithmetic

operations. The default value is 3.

® Complex

Check this option if you want to work with complex numbers. If you

do not need to use complex numbers, de-select this option. Some

transformations behave differently in complex mode.

If complex mode is not set and a calculation returns only a complex

solution for most calculations, the calculator prompts for a switch to

complex mode.

® Verbose

Check this option to display messages that indicate progress as the

calculator performs the operations that you specify.

® Step/step

Check this option to perform linear algebra operations, integrations,

and differentiations in step-by-step mode. See “Differentiating an

expression step-by-step” on page 5-19.

® Incr Pow

Check this option to display polynomial expressions with the tenns in

increasing power order, for example a- -i- a^ + ■ The default is to

display polynomials with tire tenns in decreasing order.

Page 5-4

Working with expressions

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Hp 49g Graphing Calculator Manuel d'utilisateur Page 114