subroutine expblk(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 Outputs a^u(i)
c a=rpar(1)
c
double precision t,xd(*),x(*),z(*),tvec(*),rpar(*),u(*),y(*)
integer flag,nevprt,nx,nz,ntvec,nrpar,ipar(*)
integer nipar,nu,ny
c
if(flag.eq.1) then
do 15 i=1,nu
y(i)=exp(log(rpar(1))*u(i))
15 continue
endif
if(flag.ge.4) then
do 20 i=1,nu
y(i)=exp(log(rpar(1))*u(i))
20 continue
endif
end