Crossword clues for the word: ARCTAN The word ARCTAN has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for ARCTAN Showing 1 to 7 of 7 results Clue(s) Certain inverse function Certain inverse trig function Inverse function of a tangent Inverse trig function Mathematical function Trig function Trigonometric function