Arkustangens (sümbol: arctan, atan) on nurga tangensi leidmise pöördtehe. Arkustangensi väärtus on nurk.
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Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
