Texas Instruments TI-89 User Manual page 20

Setting Application Preferences
Option
Link Locus Points
1:OFF
2:On
Envelope of Lines
1:OFF
2:On
Display Precision
1:FIX 1
2:FIX 2
©
C:FIX 12
Length & Area
1:PIXELS
2:MM
3:CM
4:M
Angle
1:Degree
2:RADIAN
Line Equations
1:y=ax+b
2:ax+by+c=0
Circle Equations
2 2 2
1:(x.a) +(y.b) =r
2 2
2:x +y +ax+by+c=0
TI-89 / TI-92 Plus / Voyage™ 200 PLT Cabri Geometry App
(continued)
Description
When this option is , the points of a locus are linked by way
ON
of linear interpolation. When this option is
are displayed.
When this option is , only the envelope of the line is
ON
displayed when you construct the locus of a line. When this
option is , each line of the locus is displayed.
OFF
Determines the display precision for calculations and
measurements in your constructions.
To modify this value dynamically in a construction, select the
number and press « or | to increase or decrease the displayed
precision of that number.
Determines the default units for measurements in your
constructions. All values are converted to the selected unit.
Determines the angle units that are displayed and the geometry
calculator mode. All angles are converted to the selected unit.
This Angle preference is independent from the
in the dialog box, which applies to other applications.
Mode
Determines the format for displayed line equations.
Determines the format for displayed circle equations.
OFF , only the points
Angle preference
16