program volatile_doctest use vecfor_R16P type(vector_R16P) :: pt(0:3) pt(0) = 5.3 * ez_R16P pt(1) = ex_R16P pt(2) = ey_R16P pt(3) = ex_R16P - ey_R16P pt(0) = distance_vectorial_to_plane_R16P(pt(0), pt1=pt(1), pt2=pt(2), pt3=pt(3)) print "(3(F3.1,1X))", pt(0)%x, pt(0)%y, pt(0)%z endprogram volatile_doctest