[4.1] Plot "vertical" lines on Graph screen
[4.2] Use DispG to force update to delta-x and delta-y
[4.3]
Truth plots
[4.4]
Plot data and functions simultaneously
[4.5] 3D parametric line and surface plots
[4.6] Graphing piece-wise defined functions with "|"
operator
[4.7] Graphing piece-wise defined function with a unit
step function
[4.8] Plot functions that return lists
[4.9]
Faster plots of slow functions
[4.10]
Faster plots of integral functions
[4.11] 3D data plots
[4.12]
Random scatter plots of 'noisy' functions
[4.13] Bode plots
[4.14]
Completely clear Graph screen
[4.15] Delete statistics plots from programs