Computational routine
eng
powblk
subroutine powblk(flag,nevprt,t,xd,x,nx,z,nz,tvec,ntvec,
& rpar,nrpar,ipar,nipar,u,nu,y,ny)
c Copyright INRIA
c Scicos block simulator
c rpar(1) is power
c
double precision t,xd(*),x(*),z(*),tvec(*),rpar(*),u(*),y(*)
integer flag,nevprt,nx,nz,ntvec,nrpar,ipar(*)
integer nipar,nu,ny
c
c
if (nrpar.eq.1) then
do 15 i=1,nu
if(u(i).lt.0.d0) then
if (flag.ge.4) return
flag=-2
return
elseif(u(i).eq.0.d0.and.rpar(1).le.0) then
if (flag.ge.4) return
flag=-2
return
endif
y(i)=u(i)**rpar(1)
15 continue
else
do 25 i=1,nu
if(ipar(1).le.0.and.u(i).eq.0.0d0) then
if (flag.ge.4) return
flag=-2
return
endif
y(i)=u(i)**ipar(1)
25 continue
endif
end