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Definition:
cotan
cotan
the tangent of the complement, or the reciprocal of the tangent, of a given angle or arc
cotan
a trigonometrical function of an angle
cotan
(in a right triangle) the ratio of the side adjacent to a given angle to the side opposite
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.