float acosd ( float  x )

inline

Compute arc cosine (degrees).

Computes the principal value of the arc cosine of x, expressed in degrees. In trigonometrics, arc cosine is the inverse operation of cosine.

Parameters

x	Floating point value in the interval [-1,+1].

Returns

Arc cosine of x, in the interval [0,180] degrees.

Warning

This function requires the enhanced NBC/NXC firmware.

Examples:

ex_acosd.nxc.