10.3 acos()

10.3 acos()

Prototypes		Header File(s)
`template <class T>`
`RWMathVec<T>`	`acos(const RWMathVec<T>&)`	`<rw/math/mathvec.h>`
`RWGenMat<T>`	`acos(const RWGenMat<T>&)`	`<rw/math/genmat.h>`
`RWMathArray<T>`	`acos(const RWMathArray<T>&)`	`<rw/math/mtharray.h>`

10.3.1 Description

Returns arc cosines y such that y_i = cos^-1 (x_i). The y_i (in radians) are in the range 0 < y_i , for elements x_i with absolute values |x_i | 1.

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