Advanced Trigonometry CalculatorATC 2.1.8 ATC 2.1.8
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ATC OnlineDownloadGitHubSourceForge

ATC 2.1.8

Download - ATC English

English localized overview for Download. Full technical documentation is available in English. English remains the canonical source for exact release and source-code authority.

Download

Download Advanced Trigonometry Calculator 2.1.8 as an open-source Windows mathematical calculator and C/C++ computing engine.

ATC is created and maintained by Renato Alexandre dos Santos Freitas, started in 2011, licensed under GPLv3, and made in Portugal.

English canonical documentationFull technical documentation is available in English. English remains the canonical source for exact release and source-code authority.Documentation statusFull technical documentation is available in English. English remains the canonical source for exact release and source-code authority.ExamplesCopyable commands, TXT workflows, scripts, and user functions.

Windows desktop package

The public release is intended for Windows desktop use. The package can include x64 and x86 builds, launcher/runtime files, scripts, user-function examples, and documentation files.

Advanced Trigonometry Calculator 2.1.8
Windows desktop application
x64 and x86 package variants
Launcher and bundled runtime files
Scripts examples
User functions
Localized documentation

ATC Online Alpha

ATC Online Alpha is the browser/WebAssembly route for trying ATC without installing the Windows desktop application. It is useful for quick tests, demonstrations, and platform-neutral access.

Open ATC Online Alpha

What to download

  • Use the latest ATC 2.1.8 package for the documented current public release.
  • Prefer x64 on modern 64-bit Windows systems.
  • Keep the included examples and documentation near the executable when testing workflows.
  • Use the English documentation as the source of truth for detailed command behavior.

License and source

ATC is distributed under the GNU GPLv3 license. Source code and project history are available through the public repository and the SourceForge project area.

GitHub repository · SourceForge project

Realistic scope

ATC is a focused numerical/symbolic mathematical tool with its own command workflow. It is not a universal CAS or a replacement for domain-specific engineering validation software.

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