| arccos | arccosine function (radians) |
| Syntax | arccos (r : real) : real
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| Description | The arccos function is used to find the arc cosine of a value. The result is given in radians. For example, arccos (0.5) is p / 3.
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| Example | This program prints out the arccosine of -1 through 1 in radians.
for i : -4 .. 4
const arg := i / 4
put "Arc cosine of ", arg, " is ",
arccos (arg), " radians"
end for
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| Execute | |
| See also | the arcsin and arctan functions for calculating arcsine and arctangent. the arccosd function which finds the arc cosine of a value with the result given in degrees. (2p radians are the same as 360 degrees.) See also predefined unit Math.
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