90 Chapter 2: TI-83 Plus Specific Information
TI-83 Plus Developer Guide Third Release May 28, 2002
UnLineCmd
Erases a line between two graph coordinate points defined in
(FPS3, FPS2) and (FPS1, FPST).
DrawCmd
Graphs an equation variable in FPST.
InvCmd
Graphs an equation variable in FPST along the Y-axis instead
of the X-axis.
CircCmd
Draws a circle given the center, a graph coordinate point in
(FPS2, FPS1), and the radius in FPST.
VertCmd
Draws a vertical line at the X value in FPST.
HorizCmd
Draws a horizontal line at the Y value in FPST.
• WINDOW zooming routines, which automatically display or redraw the current graph
screen, will not redraw after changing the window settings.
– Entry Points
Change the WINDOW settings such that:
ZooDefault
The default settings are set, (-10,10) for both the X and Y
ranges.
ZmFit
All selected functions are fully visible in the display.
ZmInt
∆X and ∆Y = 1.0 given a new center (OP1, OP5).
ZmPrev
The settings that were set before the latest zoom.
ZmSquare
∆X = ∆Y, either the X ,or Y window settings are changed.
ZmStats
All selected statplots are fully visible in the display.
ZmTrig
Appropriate for graphing trig functions dependent upon the
current trig mode.
ZmUsr
The settings that were saved by the last ZoomSto executed.
ZmDecml
(0,0) is in the center and ∆X and ∆Y = .1.
• Routines that change the current graph mode.
– Entry Points
SetFuncM
Switches to function mode.
SetParM
Switches to parametric mode.
SetPolM
Switches to polar mode.
SetSeqM
Switches to sequence mode.