|arctan||arctangent function (radians)|
|Syntax|| arctan (r : real) : real|
|Description|| The arctan function is used to find the arc tangent of a value. The result is given in radians. For example, arctan (1) is p / 4.|
|Example|| This program prints out the arctangent of 0 through 3 in radians.|
for i : 0 .. 12 const arg := i / 4 put "Arc tangent of ", arg, " is ", arctan (arg), " radians" end for
|See also||the arcsin and arccos functions for calculating arcsine and arccosine|
the arctand function which finds the arc tangent of a value with the result given in degrees. (2p radians are the same as 360 degrees.)
See also predefined unit Math.