ZeGrapher is an easy to use math plotter. It can plot functions, sequences, parametric equations and data on the plane.
It uses Qt, a widget toolkit for creating graphical user interfaces as well as cross-platform applications.
ZeGrapher is free and open source software.
Key Features
- Visualize up to six functions simultaneously. All the usual functions can be called: they’re all written on a virtual keyboard. On a given function, others can be called, so it is possible to associate or compose functions.
- Numerical sequence plotting, they can be defined by a recurrent relation or explicitly. Visualize up to six numerical sequence simultaneously.
- Parametric equation plotting. The curves can be animated, with adjustable framerate and speed.
- Experimental data plot and polynomial fit (regression). Data can be imported/exported from a CSV file.
- Parametric plot for functions, sequences and parametric equations: the parameter symbol to use is “k”.
- Plot tangents: they can be moved and resized simply with the mouse.
- Plot derivatives and antiderivatives.
- Print the graph with these options:
- Choose the size and the position of the graph on the sheet.
- Apply legends to the X and Y axis.
- Print in color or grayscale.
- Export on a PDF file.
- Export to all common image formats (PNG, JPEG, TIFF, GIF, and more).
- Display a table of values with different options.
- Navigate on the graph:
- Select a curve to display the coordinates of its points.
- Zoom/unzoom on each axis separately, around the mouse (with the scroll wheel), or fit on a mouse drawn rectangle.
- Move the graph.
- Customize the presentation:
- Change all the colors: axes, background, functions…
- Adjust the plotting precision. Note that it will also affect rendering speed.
- Show/hide a grid.
- Activate/deactivate curves’ smoothing.
- Plot the graph on an orthonormal basis. In linear algebra, two vectors in an inner product space are orthonormal if they are orthogonal (or perpendicular along a line) unit vectors.
- Internationalization support – English, French, German, and Chinese.
- Cross-platform support – runs under Linux, Mac OS X, and Windows.
Website: zegrapher.com
Support: GitHub Code Repository
Developer: Adel Kara Slimane
License: GNU General Public License v3.0
ZeGrapher is written in C++. Learn C++ with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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