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OCR: var - ATan(numeric-expression This function returns the arctang gent of an angle The ATan function takes the ratio of two sides of a right triangle (number) and returns the corresponding angle in radians The ratio is the length of the side opposite the angle divided by the length of the side adjacent to the angle The range of the result -pi/2 to pi/2 radians. For conversion of degrees radians multiply degrees by pi/180. convert radians degrees multiply radians by 180/pi. numeric- -expression - The number argument can be any valid numeric expression. var Cos( numeric-expression This function returns the cosine of an angle. The Cos function takes an angle and returns the ratio of two sides of right triangle The ratio is the length of the side adiacent to the angle divided by the length of th ...