HP 48gx User Manual

Example: Find the square roots of 8 — 61.
Step 1: Type the complex number.
@ (1) 8 GEO 6 GO) (8 -6)
AMAT[EMAT] +2 [30m] | [APPLY]
Step 2: Find the principal square root and make an extra copy.
: i
FT ET I
Step 3: Find the conjugate root.
(MTH) (NXT) CHFL (NXT) 2 (3-1)
)
Algebraics containing complex numbers can be manipulated
symbolically in the same way as real-number expressions.
Example: Calculate the sine of (.6,2).
QO @&() s@L)2 1: os 12429545641,
993377649)
EBA) [SIGN] NEG [CONJ] || |
Example: Use the EquationWriter application to enter an expression
representing the complex number 2 — 2iv/3. Then evaluate
the expression to get a complex result.
Step 1: Enter the expression.
@D
(EQUATION)
1:
1D
xiel3
2
(=)
2
(@)@)!
(x)
3
(ENTER)
EEE
EL
I
Step 2: Convert the expression to a number.
& (uv) 1: (2,-3.46418161514)
EIENITER (CN I I
3-12 Arithmetic

HP 48gx Specifications

General

Model	HP 48gx
Type	Graphing Calculator
Display Type	LCD
Display Size	131x64 pixels
Memory	128 KB RAM
Expandable Memory	Yes, via expansion cards
Release Year	1993
Processor	Saturn
Programming Language	RPL
Power Supply	3x AAA batteries
Weight	255 g (9 ounces)