Appendix B: Technical Reference 910
A complex number has real and imaginary components that identify a point
in the complex plane. These components are measured along the real and
imaginary axes, which are similar to the x and y axes in the real plane.
The point can be expressed in
rectangular form or in either of
two polar forms.
The i symbol represents the
imaginary number
ÀL1 .
r
θ
b
a
As shown below, the form that you can enter depends on the current Angle
mode.
You can use the form: When the Angle mode setting is:
a+bi Radian or Degree
r
e
i
q
Radian only
(In Degree angle mode, this form causes a
Domain error.)
(roq) Radian or Degree
Use the following methods to enter a complex number.
To enter the: Do this:
Rectangular form
a+bi
Substitute the applicable values or variable
names for a and b.
a « b 2 )
For example:
Imaginary
Real
Entering Complex Numbers
You can enter complex numbers in the polar form (roq),
where r is the magnitude and q is the angle, or polar form r e
i
q
.
You can also enter complex numbers in rectangular form a+bi
Overview of
Complex Numbers
Note: To get the
i
symbol,
press
2 )
, do not
simply type an alphabetic i.
Expressed as
a+bi, r
e
i q
, or
(roq)
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