Texas Instruments TI-89 Titanium User Manual page 900

Angle
Exponential Format
Complex Format
Appendix B: Technical Reference
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:
¦
¦
For example, 1.234567
3:ENGINEERING Similar to scientific notation. However:
¦
¦
For example, 12.34567
Note: If you select NORMAL, but the answer cannot be displayed in the
number of digits selected by Display Digits, the TI-89
Titanium / Voyage™ 200 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+bi
Displays complex numbers in the form: r e
3:POLAR
The significant digits display with one digit to the
left of the decimal.
The power of 10 displays to the right of
4 means 1.234567×10
E
The number may have one, two, or three digits
before the decimal.
The power-of-10 exponent is a multiple of three.
3 means 12.34567×10
E
.
E
4
3
q
i
897