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qinit.f.html |
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Source file: qinit.f
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Directory: /Users/rjl/git/rjleveque/clawpack-4.6.2/book/chap11/greenlight
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Converted: Wed May 30 2012 at 13:01:57
using clawcode2html
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This documentation file will
not reflect any later changes in the source file.
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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, *)
common /comic/ beta
c
c
do 150 i=1,mx
xcell = xlower + (i-0.5d0)*dx
q(i,1) = dexp(-beta * (xcell-0.3d0)**2)
if (xcell .lt. 0.d0) then
q(i,1) = 1.00d0
else
q(i,1) = 0.0d0
endif
150 continue
c
return
end