HP 48gx

Step 2: Enter the polar number on the stack. It’s converted to match
the current coordinate mode (in this case, Rectangular
mode).
(3,4)
1: (-5.HH45306H689,
¢. 8167263362)
ECT EEE El I CT
Step 3: Now change the coordinate mode and watch how the
complex number changes. (POLAR is located above the
key.)
@ 000)
2: (5,453. 1301823542)
1: (5.39,£158.2)
FHATIAHAT] +2 [2am] | [APPLY]
Change the coordinate mode back to Rectangular (press (@)(FOLAR)
again) before you go on.
Try some examples to see how easy complex numbers are to use in
calculations.
Example: Calculate:
(9+ 40) + (—4 + 37)
(341)
Step 1: Enter the first two complex numbers.
(CLEAR)
@ (1) 9 GPO) 4 ENTER)
@(COE?
Step 2: You do not need to press before pressing (1).
12, 2 (9,4)
FET TT NET El NT CTT
© 1: (3,7)
EET TT ETE IE I CLS
Step 3: Divide the result by 3 + 1.
@&()3EI1IE 1: (£.2,1.6)
AHATHAT] 32 [*0mw] | [APPLY
Arithmetic 3-11