tan

OpenTuring

tantangent function (radians)

Syntax   tan ( r : real ) : real

Description   The tan function is used to find the tangent of an angle given in radians. For example, tan (p/4) is 0.5.

Example   This program prints out the tangent of 0, p/6, 2p/6, 3p/6, up to 12p/6 radians.

        for i : 0 .. 12
            const angle := i * Math.PI / 6
            put "Tangent of ", angle, " is ", tan ( angle )
        end for

Execute  

Details  An argument to tan of p/2, 3*p/2, etc. may result in an overflow (and halt of the program) as the result is technically ¥. (It may not cause an overflow due to rounding, in which case the result will simply be a very large number.)
See also   the sin and cos functions for calculating sine and cosine.

the tand function which finds the tangent of an angle given in degrees. (2p radians are the same as 360 degrees.)

See also predefined unit Math.