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100

101

Computer Algebra System (CAS) 14-45

CAS Functions on the MATH menu

When you are in the

Equation Writer and press

, a menu of

additional CAS functions

available to you is

displayed. Many of the

functions in this menu

match the functions available from the soft-key menus in

the Equation Writer; but there are other functions that are

only available from this menu. This section describes CAS

functions that are available when you press in the

Equation Writer (grouped by main menu name).

Algebra menu

All the functions on this menu are also available on the

menu in the Equation Writer. See “ALGB menu”

on page 14-10 for a description of these functions.

Complex menu

i Inserts i (= ).

ABS Determines the absolute value of the argument.

Example

Typing ABS(7 + 4i) yields , as does ABS(7 – 4i).

ARG See “ARG” on page 13-7.

CONJ See “CONJ” on page 13-7.

DROITE

DROITE returns the equation of the line through the

Cartesian points, z

, z

. It takes two complex numbers, z

and

, as arguments.

Example

Typing:

DROITE((1, 2), (0, 1))

or:

DROITE(1 + 2·i, i)

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