Hp 48g Graphing Calculator Uživatelský manuál stáhnout pdf (Strana 269)

100

101

Example: An extension of the half-angle formula for sine is

sin(2z) = 2 sin(2) cos(z)

Create a transformation based on this formula and use it

to transform the expression ' SIN < 2* < K+1) ) ‘.

Step 1: Open the MATCH EXPRESSION form and enter the target

expression into the EXPR: field.

@fSYMBOLIC) (A] 0K

MHTC 0(M)2®S)0

(T) 1 (ENTER 1

EKPAESSiaN

EXPR: 'SIN(2*(X+n>

PATTERN:

REPLACEHENT:

_SURERPR FIRST CDND:

ENTER PATTERN TO SEARCH FOR

Step 2: Enter the pattern and replacement expressions, using a

wildcard for ^ in the formulais.

CD CIE) 2 ®

@Z iENTE~R) CD 2 ® fsilp

(ENTER).

MATCH EXPRESSIONS^*

EXPR: 'SINC2*iX+l>) '

PATTERN: 'SIN<2*&Z>'

REPLACEMENT: ' 2*S IN <

gSUREXPR FIRST CDND:

SEARCH SUBEXPRESSIONS FIRST-?

_____

■HIliiBMHKIMiiaHMIiliRllHlISBi

Step 3: Leave .SUBEXPR FIRST unchecked and do not include a

conditional test. Execute the search-and-replace.

MANIPULATE EXPRESSION

EXPR:

ENTER EXPRESSION

_________________

HOTaHnrnHBiiBBiSimaMiigiijpiia

Calculus and Symbolic Manipulation 20-29

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