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Complex numbers on the hp 39g+ can be entered in either of two ways.
Firstly, in the same way as they are commonly written in mathematical
workings:
a + bi. Secondly, as an ordered pair: (a,b).
For example,
+
3 2 i
calculator exactly as it is written, with the ' i '
obtained using the ALPHA key, pressing the
SHIFT key first to get a lowercase i .
Alternatively you can enter it directly as an
ordered pair.
As soon as you press ENTER, the calculator immediately converts the a + bi
form into an ordered pair. The History retains the original in case you need
to
it later for re-use.
The exception is when you enter a complex
number in rcis form using the
the keyboard. When you do this the calculator
converts to a more explicit rcis format as
shown right. Try it.
Complex numbers can be used with all trigonometric and hyperbolic function,
as well as with matrices, lists and some real-number and keyboard functions.
Just as real numbers can be stored into the
alphabetic memories A to Z, there are 10
special memories Z1,Z2..Z9,Z0 which are
provided to store complex numbers.
g
r
o
u
p
o
f
f
u
n
c
t
i
g
r
o
u
p
o
f
f
u
n
c
t
i
could be entered into the
(angle) sign on
o
n
s
o
n
s
262
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