qinit.f.html
Source file:   qinit.f
Directory:   /Users/rjl/Dropbox/ggsss-pages/claw-apps/advection-1d-3
Converted:   Sun Jul 29 2012 at 22:07:48   using clawcode2html
This documentation file will not reflect any later changes in the source file.

 
c
c
c =========================================================
       subroutine qinit(maxmx,meqn,mbc,mx,xlower,dx,q,maux,aux)
c =========================================================
c
c     # Set initial conditions for q.
c
c
      implicit double precision (a-h,o-z)
      dimension q(1-mbc:maxmx+mbc, meqn)
      dimension aux(1-mbc:maxmx+mbc, *)
c
      
c
      pi = dacos(-1.d0)
      do 150 i=1,mx
         xcell = xlower + (i-0.5d0)*dx
         q(i,1) = 0.5*dcos(2.d0*pi*xcell) 
     &             + dexp(-1000.d0 * (xcell-0.3d0)**2)
         if ((xcell > 0.7d0) .and. (xcell < 0.8d0)) then
            q(i,1) = 1.0d0
            endif
  150    continue
c
      return
      end