displays fields in a display window

defines a blanking viewport

deletes the blanking viewport

closes the graphics segment

deletes a graphics segment

draws a polyline

draws individual lines

draws a grid

includes a graphics segment

opens a graphics segment

draws pie slices

converts from polar to world coordinates

plots points

draws and fills a polygon

defines a viewport

pops the viewport

stacks the viewport

computes round numbers for labeling axes

writes multiple text strings with special fonts

sets attributes for a graphics segment

shows a graph

initializes the graphics system

deactivates the graphics system

finds the string length

places text horizontally on a graph

places text vertically on a graph

defines the data window

draws a horizontal axis

draws a vertical axis

produces scatter plots

opens a display window