69 SUBROUTINE plyv(NODFT,NODLT,INOD,A,V,U)
76#include "implicit_f.inc"
84 INTEGER NODFT,NODLT,NDDIM,INOD(*)
87 . a(4,*), v(3,*),u(3,*)
95#include "vectorize.inc"
99 v(1,n)= v(1,n) + dt12*a(1,n)
100 v(2,n)= v(2,n) + dt12*a(2,n)
101 v(3,n)= v(3,n) + dt12*a(3,n)
103 u(1,n)= u(1,n) + dt2*v(1,n)
104 u(2,n)= u(2,n) + dt2*v(2,n)
105 u(3,n)= u(3,n) + dt2*v(3,n)