anchor.diff:          if(mhist(i).ne.izero) then
             if(mhist(i).gt.nhist.or.mhist(i).lt.0) then
               ierr=100
  +            errstrng="mathist"
               return
             end if
             ptmp(i)=histry(mhist(i),nstep+1)*prop(i)
  
positive.code:       end
  c
  c version
  c $Id: mathist.f,v 1.3 2004/06/16 15:44:54 willic3 Exp $
  c
  c Generated automatically by Fortran77Mill on Wed May 21 14:15:03 2003
  c
  
negative.code: c
  c
        subroutine mathist(ptmp,prop,mhist,histry,nprop,imat,nstep,nhist,
       & lastep,matchg,ierr,errstrng)
  c
  c...subroutine to assign material properties based on time histories
  c
  