3D Grapher is a feature-rich yet easy-to-use graph
plotting and data visualization software suitable for
students, engineers and everybody who needs to work
with 2D and 3D graphs. 3D Grapher is small, fast,
flexible, and reliable. It offers much of the
functionality of heavyweight data analysis and
graphing software packages for a small fraction of
their cost. The program is very easy to learn - you
don't need to read long manuals to figure out how it
works, but can just play with 3D Grapher for several
minutes and start working.

3D Grapher provides for three systems of coordinates:
Cartesian, cylindrical and spherical. Graphs can be
generated from table data or from the manually entered
equations. You can specify the unlimited number of
equations and tables and their graphs will be plotted
in one coordinate system using different colors and
lighting conditions. This feature helps you visualize
and analyze the domains and intercepts of several
functions.

Functions can be parametric, and can include a time
variable - this feature allows creation of animated
graphs and models. You can easily rotate the created
graphs with the mouse, zoom them and view at any
angle. Other program features include:
1) Built-in expression calculator
2) Mouse cursor coordinate tracking
3) Fully customizable user-friendly interface for
highly efficient workflow
4) Ability to import and export data in several
popular file formats
5) Ability to copy the graphs and paste them into your
own documents
6) Support for OpenGL video accelerators.

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