length of this quaternion in four-space concode_field_sep float q1 concode_elem_sep float q2 concode_elem_sep float q3 concode_elem_sep float EPSILON concode_elem_sep float q0 concode_field_sep void init concode_elem_sep Rotf inverse concode_elem_sep void set concode_elem_sep void set concode_elem_sep void set concode_elem_sep float lengthSquared concode_elem_sep void invert concode_elem_sep void mul concode_elem_sep void rotateVector concode_elem_sep Vec3f rotateVector concode_elem_sep Rotf times concode_elem_sep void toMatrix concode_elem_sep void fromMatrix concode_elem_sep float get concode_elem_sep void normalize concode_elem_sep String toString concode_elem_sep void setQ concode_elem_sep boolean withinEpsilon
float function ( ) { return ( float ) Math . sqrt ( lengthSquared ( ) ) ; }