20
Getting started
Complex numbers
Complex results
If the Complex mode setting is checked, then the HP 39gII
can return a complex number as a result for some math
functions. A complex number appears as
. For
example, entering
returns
i
and entering (4,5)
returns
.
To enter complex
numbers
Enter the number in either of these forms, where
x
is the
real part,
y
is the imaginary part, and
i
is the imaginary
constant, :
•
(
x, y
) or
•
x + iy
.
To enter
i
:
•
press
SAi
or
•
press
b
,
=
or
\
keys to select
Constant
,
>
to move to the right column of the menu,
\
to
select
i
, and
.
Storing complex
numbers
There are ten variables available for storing complex
numbers: Z0 to Z9. To store a complex number in a
variable:
•
Enter the complex number, press
, enter the
variable to store the number in, and press
E
.
l
4
o
5
m
A
Z 0
E
x
y
i
×
+
1
–
4
5
i
×
+
1
–
Summary of Contents for 39gII
Page 1: ...HP 39gII graphing calculator user s guide Edition1 Part Number NW249 90001 ...
Page 2: ...Printing History Edition 1 November 201 1 ...
Page 32: ...22 Getting started ...
Page 58: ...48 Apps and their views ...
Page 70: ...60 Function app ...
Page 80: ...70 Solve app ...
Page 136: ...126 Polar app ...
Page 140: ...130 Sequence app ...
Page 148: ...138 Finance app ...
Page 152: ...142 Linear Solver app ...
Page 218: ...208 Matrices ...
Page 226: ...216 Notes and Info ...
Page 238: ...228 Variables and memory management ...
Page 318: ...308 Programming ...
Page 340: ...330 Reference information ...
Page 346: ...vi Product Regulatory Information ...