|cos||cosine function (radians)|
|Syntax|| cos (r : real) : real|
|Description|| The cos function is used to find the cosine of an angle given in radians. For example, cos (0) is 1.|
|Example|| This program prints out the cosine of p/6, 2p/6, 3p/6, up to 12p/6 radians.|
const pi := 3.14159 for i : 1 .. 12 const angle := i * pi / 6 put "Cos of ", angle, " is ", cos (angle) end for
|See also||the sin and tan functions for calculating sine and tangent.|
the cosd function which finds the cosine of an angle given in degrees. (2p radians are the same as 360 degrees.)
See also predefined unit Math.