Casio ALGEBRA FX 2.0 PLUS Computer Algebra System and Tu Manuel d'utilisateur télécharger pdf (Page 16)

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u cExpand (cExpnd)

Function: Expands xth root of imaginary number.

Syntax: cExpand( {Exp/Eq/Ineq/List/Mat/Vect} [ ) ]

Example To expand 2i

1(TRNS)v(cExpnd)!x( )c!a(i)w 1 + i

u approx

Function: Produces a numerical approximation for an expression.

Syntax: approx( {Exp/Eq/Ineq/List/Mat/Vect} [ ) ]

Example To obtain a numerical value for 2

1(TRNS)l(approx)!x( )cw 1.414213562

Example 9

Normal:jM caw 12157665459056928801

approx: 1(TRNS)l(approx)jMcaw 1. 215766546E+19 (Display: Norm1)

7-1-15

Using the CAS (Computer Algebra System) Mode

# About approx

With normal calculations (when approx is not

used) in the CAS Mode, calculation results are

displayed in full, without using exponents.

When you use approx in the CAS Mode,

however, results are displayed using the

exponential format range specified by the Display

item of the SET UP screen.

This means approx displays results in the CAS

Mode the same way they are displayed in the

RUN

•

MAT Mode.

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Casio ALGEBRA FX 2.0 PLUS Computer Algebra System and Tu Manuel d'utilisateur Page 16