Silhouette is a plugin for Adobe Illustrator 8, 9 and 10 to convert bitmap images to vectors images with unique correction tool
* vectorizes colors and b&w images/logos
* straightens up a logo
* sharpens rounded or truncated corners
* deletes useless points
* converts flat curves into straight lines
* aligns segments of straight lines on the same axis
* smoothes curves
* simplifies curves while keeping their appearance

Plotting functions (usual and parametric) with more possibilities.
Differentiation of any order (with simplification). Construction of tangents to the graph. The simple and clear interface with detailed documentation and examples of work.

Powerful but easy-to-use graphing, curve fitting and calculating software. Graphs Cartesian, polar and parametric functions, graphs of tables, implicit functions, inequalities and slope fields. Up to 100 graphs in one window. Calculus features: regression analysis, intersections, derivatives, tangents, normals and more. The program has printing capabilities, multi-document interface, customizable toolbars.

This program is for drawing graphs of mathematical functions in a coordinate system. Graphs may be added with different color and line styles. The program supports standard, parameter and polar functions. It is possible to evaluate a function at an entered point or tracing the function with the mouse. It is possible to add shadings to functions, and series of points to the coordinate system. Trendlines may be added to point series.