/[escript]/trunk/doc/examples/helmholtz.py
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Annotation of /trunk/doc/examples/helmholtz.py

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Revision 566 - (hide annotations)
Tue Feb 28 03:52:29 2006 UTC (12 years, 11 months ago) by gross
Original Path: trunk/doc/user/examples/helmholtz,py
File size: 544 byte(s)
rename
1 jgs 102 # $Id$
2 jgs 108 from mytools import Helmholtz
3     from esys.escript import Lsup
4     from esys.finley import Rectangle
5 jgs 102 #... set some parameters ...
6 jgs 108 kappa=1.
7 jgs 102 omega=0.1
8     eta=10.
9     #... generate domain ...
10 jgs 113 mydomain = Rectangle(l0=5.,l1=1.,n0=50, n1=10)
11 jgs 102 #... open PDE and set coefficients ...
12     mypde=Helmholtz(mydomain)
13     n=mydomain.getNormal()
14     x=mydomain.getX()
15 jgs 108 mypde.setValue(kappa,omega,omega*x[0],eta,kappa*n[0]+eta*x[0])
16 jgs 102 #... calculate error of the PDE solution ...
17     u=mypde.getSolution()
18     print "error is ",Lsup(u-x[0])
19 jgs 113 # output should be similar to "error is 1.e-7"

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