You use the trigonometric functions to solve standard problems in trigonometry, such as computing the cosine of a given angle.
Note that all angles must be supplied in radians, where pi/2 radians = 90 degrees, and all answers will be given in radians. To convert radians to degrees and degrees to radians use the DEGREES and RADIANS functions respectively.
Here is a complete list of trigonometric functions in Ability:
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