Texas Instruments PLUS TI-89 - Manual (Page 568)

Appendix B: Reference Information 551
8992APPB DOC TI-89/TI-92 Plus:8992appb doc (English) Susan Gullord Revised: 02/23/01 1:54 PM Printed: 02/23/01 2:24 PM Page 551 of 34
Specifies the units in which angle values are interpreted and
displayed in trig functions and polar/rectangular conversions.
1:RADIAN
2:DEGREE
Specifies which notation format should be used. These formats
affect only how an answer is displayed; you can enter a number in
any format. Numeric answers can be displayed with up to 12 digits
and a 3-digit exponent.
1:NORMAL Expresses numbers in standard format. For
example,
12345.67
2:SCIENTIFIC Expresses numbers in two parts:
¦ The significant digits display with one digit to
the left of the decimal.
¦ The power of 10 displays to the right of E .
For example, 1.234567 E 4 means 1.234567 × 10 4
3:ENGINEERING Similar to scientific notation. However:
¦ The number may have one, two, or three
digits before the decimal.
¦ The power-of-10 exponent is a multiple of
three.
For example, 12.34567 E 3 means 12.34567 × 10 3
Note : If you select NORMAL , but the answer cannot be displayed in
the number of digits selected by Display Digits , the TI -89 / TI-92 Plus
displays the answer in SCIENTIFIC notation. If Display Digits = FLOAT ,
scientific notation will be used for exponents of 12 or more and
exponents of ì4 or less.
Specifies whether complex results are displayed and, if so, their
format.
1:REAL Does not display complex results. (If a result is a
complex number and the input does not contain
the complex unit i, an error message is
displayed.)
2:RECTANGULAR Displays complex numbers in the form: a+b i
3:POLAR Displays complex numbers in the form: r e i q
Angle
Exponential Format
Complex Format