question: returns the 2 norm of this vector . this is the square root of the sum of the squares of the elements . concode_field_sep double DOUBLE_PREC concode_elem_sep double x concode_elem_sep double y concode_elem_sep double z concode_field_sep void add concode_elem_sep void add concode_elem_sep void sub concode_elem_sep void sub concode_elem_sep void set concode_elem_sep void set concode_elem_sep void set concode_elem_sep double distance concode_elem_sep double normSquared concode_elem_sep double dot concode_elem_sep void cross concode_elem_sep void scale concode_elem_sep void scale concode_elem_sep double distanceSquared concode_elem_sep double get concode_elem_sep void normalize concode_elem_sep void setZero concode_elem_sep void setRandom concode_elem_sep String toString
target: double function ( ) { return Math . sqrt ( x * x + y * y + z * z ) ; }