unit_vector_constrain() [10/11]

template<typename T , require_rev_col_vector_t< T > * = nullptr>

auto stan::math::unit_vector_constrain ( const T &  y )

inline

Return the unit length vector corresponding to the free vector y.

See https://en.wikipedia.org/wiki/N-sphere#Generating_random_points

Template Parameters

EigMat

type inheriting from EigenBase that has a var scalar type.

Parameters

y	vector of K unrestricted variables

Returns

Unit length vector of dimension K

Definition at line 30 of file unit_vector_constrain.hpp.