Annotation of /trunk/doc/user/examples/helmholtz,py

# $Id$
from mytools import Helmholtz
from esys.escript import Lsup
from esys.finley import Rectangle
#... set some parameters ...
kappa=1.
omega=0.1
eta=10.
#... generate domain ...
mydomain = Rectangle(l0=5.,l1=1.,n0=50, n1=10)
#... open PDE and set coefficients ...
mypde=Helmholtz(mydomain)
n=mydomain.getNormal()
x=mydomain.getX()
mypde.setValue(kappa,omega,omega*x[0],eta,kappa*n[0]+eta*x[0])
#... calculate error of the PDE solution ...
u=mypde.getSolution()
print "error is ",Lsup(u-x[0])
# output should be similar to "error is 1.e-7" 
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,omegax[0],eta,kappan[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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