[](https://travis-ci.org/numworks/epsilon) [](https://ci.appveyor.com/project/Ecco/epsilon-n2hn8/branch/master) Epsilon is a high-performance graphing calculator operating system. It includes eight apps that cover the high school mathematics curriculum. You can try Epsilon straight from your browser in the [online simulator](https://www.numworks.com/simulator/). ## Diving in We highly recommend you start by reading the [online documentation](https://www.numworks.com/resources/engineering/software/) for this project. You'll learn about: * Installing the [SDK](https://www.numworks.com/resources/engineering/software/sdk/) * The [design decisions](https://www.numworks.com/resources/engineering/software/embedded/) that were made * The overall [software architecture](https://www.numworks.com/resources/engineering/software/architecture/) of the firmware ## Contributing If you run into an issue, we would be very happy if you would file a bug on the [issue tracker](https://github.com/numworks/epsilon/issues). We welcome contributions. For smaller changes just open a pull request straight away. For larger changes we recommend you open an issue first for discussion. ## License NumWorks Epsilon is released under a [CC BY-NC-ND License](https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode). NumWorks is a registered trade mark.