Advanced Trigonometry CalculatorATC 2.1.7 ATC 2.1.7
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ATC 2.1.7

Quick Start - ATC English

English localized overview for Quick Start. Full technical documentation is maintained in English.

Quick Start

Open-source C/C++ mathematical engine and Windows calculator for practical numerical and algebraic workflows.

ATC 2.1.7 improves high precision calculations, equation solving, polynomial simplification, roots-to-polynomial workflows, TXT automation, autocomplete, usability, and documentation.

English canonical documentation

The full technical documentation is currently maintained in English. This localized page provides navigation, context, and links to the English canonical material.

Open English section

English canonical documentationThe full technical documentation is currently maintained in English. This localized page provides navigation, context, and links to the English canonical material.What is ATC?Read a clear project overview.What ATC is notUnderstand the project scope and limits.Documentation statusSee translation coverage and English canonical documentation status.

Key Features

  • Equation solving, polynomial tools, and complex-number workflows.
  • Matrix calculations, statistics, physics, geometry, and unit conversions.
  • DSP / FFT functions, scripting, batch TXT processing, and user functions.
  • Windows desktop application with ATC Online Alpha through WebAssembly.
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