plotting-software

ZeGrapher – open source 2D math and data plotter

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.

Features include:

  • 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

ZeGrapher is written in C++. Learn C++ with our recommended free books and free tutorials.

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