qinit.f.html | |
Source file: qinit.f | |
Directory: /Users/rjl/clawpack_src/clawpack_master/apps/fvmbook/chap7/standing | |
Converted: Sat Mar 23 2024 at 11:05:41 using clawcode2html | |
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c c c ========================================================= subroutine qinit(meqn,mbc,mx,xlower,dx,q,maux,aux) c ========================================================= c c # Set initial conditions for q. c # Standing wave for the acoustics equations. c c implicit double precision (a-h,o-z) dimension q(meqn,1-mbc:mx+mbc) dimension aux(maux,1-mbc:mx+mbc) c c pi = 4.d0*datan(1.d0) do i=1,mx xcell = xlower + (i-0.5d0)*dx q(1,i) = dcos(2.d0*pi*xcell) q(2,i) = 0.d0 enddo c return end