Graph piecewise functions quickly and easily, complete with open and closed endpoint symbols.
Plot polar functions using polar or cartesian grids, or even enter individual points in polar coordinates.
Plot conic sections and other implicity defined functions using the implicit plot type.
Add horizontal, vertical, and slant asymptotes to any graph.
Plot slope fields for calculus. How many other programs do that?
Plot multiple functions on the same graph, and even shade between them—perfect for area between curves in calculus.
Automatically generate sensible labels in terms of π for trigonometric graphs.
Graph parametric curves, including direction arrows.
Add axis labels, captions, and legends for better scientific plots.
Plot intervals on number lines, complete with endpoints.