564 Appendix B: Reference Information
8992APPBDOC TI
-
89/TI
-
92Plus:8992a
pp
bdoc (English) SusanGullord Revised:02/23/01 1:54 PM Printed:02/23/01 2:24 PM Page564 of 34
To enter the: Do this:
Polar form
r e
i
q
– or –
(rq)
Substitute the applicable values or variable
names for r and q, where q is interpreted
according to the Angle mode setting.
TI.89:
j [R] ¥ s 2 ) ¥ Ï d
– or –
c j [R] 2 ’ ¥ Ï d
TI.92 Plus:
R 2 s 2 ) Ï d
– or –
c R 2 ’ Ï d
For example:
Use 3 to set the
Complex Format mode
to one of three settings.
You can enter a complex number at any time, regardless of the
Complex Format mode setting. However, the mode setting determines
how results are displayed.
If Complex Format is: The TI.89 / TI.92 Plus:
REAL Will not display complex results unless you:
¦ Enter a complex number.
– or –
¦ Use a complex function such as
cFactor(), cSolve(), or cZeros().
If complex results are displayed, they will
be shown in either a+bi or r e
i
q form.
RECTANGULAR Displays complex results as a+bi.
POLAR Displays complex results as:
¦ r e
i
q if the Angle mode = Radian
– or –
¦ (rq) if the Angle mode = Degree
Important: Do not use the
r
e
i
q
polar form in
Degree
angle mode. It will cause a
Domain error
.
Note: To get the
e
symbol,
press:
TI.89:
¥ s
.
TI.92 Plus:
2 s
Do not simply type an
alphabetic e.
Tip: To get the symbol,
press
2 ’
.
Tip: To enter q in degrees
for (rq), you can type a ¡
symbol (such as 45¡). To
get the ¡ symbol, press
2 “
. You should not use
degrees for r
e
i
q
.
Complex Format
Mode for Displaying
Results
Note: You can enter
complex numbers in any
form (or a mixture of all
forms) depending on the
Angle
mode.
Results are shown in rectangular
form, but you can select polar form.
Parentheses are
required for the
(rq) form.