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 — expression function - inverse cosine [2016/09/14 14:19] (current) Line 1: Line 1: + ====== Inverse Cosine (Expression Function) ====== + ===== Purpose ===== + The **Inverse Cosine** function (ACOS) is used to calculate the inverse, arc, [[Expression Function - Cosine|cosine]] in radians, degrees, or gradians. ​ + + {{::​acos_initial.png?​direct&​600|}} + + ===== Parameters ===== + The **Inverse Cosine** function has two parameters, the first of which is required: + + ==== Value ==== + + Allowed Inputs: [[Field|field]] value or number + + The first required parameter is the value that the inverse cosine will be obtained from either use the use the [[Query Builder]] to choose a field that contains the value or use type a value to enter a number. + + ==== Angle Unit ==== + + Allowed Inputs: omitted, '​d',​ '​g' ​ + + The second parameter of the **Inverse Cosine** function is the unit of the output angle. If the angle unit is omitted or not recognized then radians will be be used.  For an angle provided in degrees use '​d'​. ​ For an angle provided in gradians use '​g'​. ​ If the angle unit needs to be dynamically stored in a field then the advanced expression builder will need to be used. + + + ===== Output ===== + + The output of the **Inverse Cosine** function is a number representing the arc cosine of the angle in radians, degrees, or gradians. + + ===== Example ===== + + For example ACOS(0.707106781187) is "​0.785398163397",​ ACOS(40.5142342271,'​d'​) is "​45",​ and ACOS(45.0158158079,'​g'​) is "​50"​.
expression function - inverse cosine.txt · Last modified: 2016/09/14 14:19 (external edit)   