Texas Instruments TI-83-Plus User Manual

Chapter 2: TI-83 Plus Specific Information 89
TI-83 Plus Developer Guide Third Release May 28, 2002
– System flags
plotLoc, (IY + plotFlags)
0 = draws affect both the display and the Graph
backup buffer,
plotSScreen.
1 = draws affect the display only.
bufferOnly, (IY +
plotFlag3)
1 = draws affect the graph backup buffer
plotSScreen only.
– Entry Points
Cpoint
Darkens, lightens, or reverses a graph coordinate point defined in
OP1/OP2.
CpointS
Darkens, lightens, or reverses a graph coordinate point defined in
FPS1/FPST.
Cline
Darkens a line between two graph coordinate points defined in
OP1/OP2 and OP3/OP4.
ClineS
Darkens a line between two graph coordinate points defined in
FPS3/FPS2 and FPS1/FPST.
UCLineS
Erases a line between two graph coordinate points defined in
FPS3/FPS2 and FPS1/FPST.
DarkPnt
Darkens a graph coordinate point defined in OP1/OP2.
DrawCirc2
Draws a circle given the center, a graph coordinate point in
FPS2/FPS1, and the radius in FPST.
• Routines that will automatically display or redraw the current graph screen before
executing. If the graph does not need to be redrawn, the contents of the graph
backup buffer,
plotSScreen, are copied to the display.
– System flags
bufferOnly, (IY +
plotFlag3)
1 = draws affect the graph backup buffer
plotSScreen only.
– Entry Points
Regraph
Graphs any selected equations in the current graph mode, and
also any selected statplots.
PDspGrph
Tests if the graph of the current mode needs to be redrawn. If
so, call the Regraph routine, otherwise copies
plotSScreen to
the display.
PointCmd
Darkens, lightens, or reverses a graph coordinate point defined
in (FPS2, FPS1).
LineCmd
Darkens a line between two graph coordinate points defined in
(FPS3, FPS2) and (FPS1, FPST).

Texas Instruments TI-83-Plus Specifications

General

Brand	Texas Instruments
Model	TI-83-Plus
Category	Calculator
Language	English