https://github.com/adelks/zegrapher
2D Math and Data plotter.
https://github.com/adelks/zegrapher
2d curves math math-functions parametric-equation plot sequences
Last synced: 16 days ago
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2D Math and Data plotter.
- Host: GitHub
- URL: https://github.com/adelks/zegrapher
- Owner: AdelKS
- License: agpl-3.0
- Created: 2015-08-01T22:57:36.000Z (almost 11 years ago)
- Default Branch: master
- Last Pushed: 2026-05-09T19:59:18.000Z (22 days ago)
- Last Synced: 2026-05-09T21:34:28.582Z (22 days ago)
- Topics: 2d, curves, math, math-functions, parametric-equation, plot, sequences
- Language: C++
- Homepage: https://zegrapher.com
- Size: 7.14 MB
- Stars: 75
- Watchers: 5
- Forks: 10
- Open Issues: 20
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
ZeGrapher is a free, open source and easy to use software for plotting mathematical objects. It can plot functions, sequences, parametric equations and data on the 2D plane.
**Official website:** [https://zegrapher.com/](https://zegrapher.com/)
------------------------------------
### Features
ZeGrapher is in a deep rework stage, the features described here may still not be implemented.
- Visualize functions by giving their "natural" equations (e.g. `f(x) = 2+cos(x)`)
- All the standard mathematical functions (`cos` `cosh` `exp` ...etc) can be used.
- Any user defined function can be used.
- Planned: compute derivatives and integrals.
- Visualize numerical sequences through specific equations
- Defined by giving a list of expressions separated with `,` or `;`
- The last expression is the "generic" expression that is used for any other index that the first values.
- If more than one expression is provided, the first expressions are considered as the first values of the sequence
- Example: Fibonacci sequence `u(n) = 0 ; 1 ; u(n-2) + u(n-2)`
- First values: `0`, `1`
- Generic expression: `u(n-2) + u(n-1)`
- Can define "global constants", i.e. a variable that has an explicit numeric value without depending on any other object
- Example `pi = 3.14`
- Can be used for parametric plots of functions, sequences and parametric equations.
- Can be made into "Schrodinger Constants": take many values at once and all dependent math objects will be plotted simultaneously for each value taken
- Can define "global variables", i.e. a function without input variables that can arbitrarily depend on other objects.
- Plotting of 2D data
- Polynomial fitting (regression).
- Data can be imported from/exported to a CSV file.
- Extensive tools for precise exporting
- Image (`png`, `jpeg`, `tiff`, `gif`...) and scalable (`svg`, `pdf`) formats
- Preview the graph exactly how it will look once exported
- Set sizes in centimeter or in pixels
- A global scaling factor is offered to change the DPI
- Move the graph within the page
- 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.
- Customization/visualization
- Can change the grid ticks to be multiples of a given variable/value
- e.g. multiples of `π`
- Change colors: axes, background, functions...
- Adjust the plotting precision.
- Note that it will also affect rendering speed.
- Show/hide the grid
- Show/hide the subgrid.
- user set number of subdivisions
- Activate/deactivate curves\' smoothing.
- Plot the graph on an orthonormal basis.
------------------------------------------
### Download
ZeGrapher is available in the official repositories of Debian, Fedora, Ubuntu, FreeBSD. In the Archlinux (AUR). An [AppImage](https://appimage.org/) is otherwise available, along with Windows and Mac versions in Zegrapher's [Github releases page](https://github.com/AdelKS/ZeGrapher/releases) or at [zegrapher.com](https://zegrapher.com/).
### Compile from sources
To compile from sources, ZeGrapher needs the following tools and libraries:
- C++ compiler: [clang](https://clang.llvm.org/) or [gcc](https://gcc.gnu.org/)
- [boost](https://www.boost.org/)
- [Qt](https://www.qt.io)
- [meson](mesonbuild.com)
To build
```shell
meson setup build
cd build
meson compile
cd ..
```
This creates the `ZeGrapher` executable in `build/src/ZeGrapher` that you can directly run.
#### Packaging
- Linux
- `meson install` should now be fully XDG compliant. Issues and/PRs welcome if something is missing.
- Use [deploy/linux-bundle-appimage.sh](./deploy/linux-bundle-appimage.sh) to create an [AppImage](https://appimage.org/).
- macOS
- Use [deploy/macos-bundle-dmg.sh](deploy/macos-bundle-dmg.sh) to create an installer.
- Windows
- Use [deploy/windows-bundle-7s.sh](deploy/windows-bundle-7s.sh) (requires to be run from an [MSYS2](https://www.msys2.org/) terminal)