Hp 48G Instrukcja Użytkownika Pobierz pdf (Strona 40)

Example: Find the square roots of 8 — 6i.

Step 1: Type the complex number.

l-hn

....

jl8f^l6fVT|

(8 -6)

EaisMiBgaT?nK»iBB3toi

Step 2: Find the principal square root and make an extra copy.

^fENTER) £: (3,-n

1: C3,-l)

Step S: Find the conjugate root.

(MTHKnXT) fNXT)

(3,-1)

(3,1)

Algebraics containing complex numbers can be manipulated

symbolically in the same way as reahnumber expressions.

Example: Calculate the sine of (.6,2).

(SIN 1

(EVAL)

1: (£.12429548041,

2.993.3??0649)

Example: Use the Equation Writer application to enter an expression

representing the complex number 2 2i\/3. Then evaluate

the expression to get a complex result.

Step 1: Enter the expression.

Q 2 (o|5DI ® 3 (ENTER)

Step 3: Convert the expression to a number

JiLl

1: '2-2*1*13'

sjE-izgKTggj&iMiFiiiiiBiiHiiiM

1: (2,-3.46410161514)

3-12 Arithmetic

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 115 116

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Hp 48G Instrukcja Użytkownika Strona 40