4 *CMZ :- -05/11/95 19.33.42 by Mike Seymour
6 *-- Author : Adapted by Bryan Webber
8 C-----------------------------------------------------------------------
10 SUBROUTINE HWULOB(PS,PI,PF)
12 C-----------------------------------------------------------------------
14 C TRANSFORMS PI (GIVEN IN REST FRAME OF PS) INTO PF (IN LAB)
16 C N.B. P(1,2,3,4,5) = (PX,PY,PZ,E,M)
18 C-----------------------------------------------------------------------
20 DOUBLE PRECISION PS(5),PI(5),PF(5)