arccosd  arccosine function (degrees) 
Syntax  arccosd (r : real) : real

Description  The arccosd function is used to find the arc cosine of an angle given in degrees. For example, arccosd (0.5) is 60.

Example  This program prints out the arccosine of values from 1 to 1 in degrees.
for i : 4 .. 4 const arg := i / 4 put "Arc cosine of ", arg, " is ", arccosd (arg), " degrees" end for 
Execute  
See also  the arcsind and arctand functions for calculating arcsine and arctangent the arccos function which finds the arc cosine of a value with the result given in radians. (2p radians are the same as 360 degrees.) See also predefined unit Math.
