/[escript]/trunk/escript/py_src/pdetools.py
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revision 637 by gross, Thu Mar 23 10:55:31 2006 UTC revision 720 by gross, Thu Apr 27 10:16:05 2006 UTC
# Line 36  class TimeIntegrationManager: Line 36  class TimeIntegrationManager:
36    """    """
37    a simple mechanism to manage time dependend values.    a simple mechanism to manage time dependend values.
38    
39    typical usage is:    typical usage is::
40    
41    dt=0.1 # time increment       dt=0.1 # time increment
42    tm=TimeIntegrationManager(inital_value,p=1)       tm=TimeIntegrationManager(inital_value,p=1)
43    while t<1.       while t<1.
44        v_guess=tm.extrapolate(dt) # extrapolate to t+dt           v_guess=tm.extrapolate(dt) # extrapolate to t+dt
45        v=...           v=...
46        tm.checkin(dt,v)           tm.checkin(dt,v)
47        t+=dt           t+=dt
48    
49    @remark: currently only p=1 is supported.    @note: currently only p=1 is supported.
50    """    """
51    def __init__(self,*inital_values,**kwargs):    def __init__(self,*inital_values,**kwargs):
52       """       """
# Line 192  class NoPDE: Line 192  class NoPDE:
192    
193       The constraint is overwriting any other condition.       The constraint is overwriting any other condition.
194    
195       @remark: This class is similar to the L{LinearPDE} class with A=B=C=X=0 but has the intention       @note: This class is similar to the L{linearPDEs.LinearPDE} class with A=B=C=X=0 but has the intention
196                that all input parameter are given in L{Solution} or L{ReducedSolution}. The whole              that all input parameter are given in L{Solution} or L{ReducedSolution}. The whole
197                thing is a bit strange and I blame Robert.Woodcock@csiro.au for this.              thing is a bit strange and I blame Robert.Woodcock@csiro.au for this.
198       """       """
199       def __init__(self,domain,D=None,Y=None,q=None,r=None):       def __init__(self,domain,D=None,Y=None,q=None,r=None):
200           """           """
# Line 203  class NoPDE: Line 203  class NoPDE:
203           @param domain: domain of the PDE.           @param domain: domain of the PDE.
204           @type domain: L{Domain}           @type domain: L{Domain}
205           @param D: coefficient of the solution.           @param D: coefficient of the solution.
206           @type D: C{float}, C{int}, L{NumArray}, L{Data}           @type D: C{float}, C{int}, L{numarray.NumArray}, L{Data}
207           @param Y: right hand side           @param Y: right hand side
208           @type Y: C{float}, C{int}, L{NumArray}, L{Data}           @type Y: C{float}, C{int}, L{numarray.NumArray}, L{Data}
209           @param q: location of constraints           @param q: location of constraints
210           @type q: C{float}, C{int}, L{NumArray}, L{Data}           @type q: C{float}, C{int}, L{numarray.NumArray}, L{Data}
211           @param r: value of solution at locations of constraints           @param r: value of solution at locations of constraints
212           @type r: C{float}, C{int}, L{NumArray}, L{Data}           @type r: C{float}, C{int}, L{numarray.NumArray}, L{Data}
213           """           """
214           self.__domain=domain           self.__domain=domain
215           self.__D=D           self.__D=D
# Line 237  class NoPDE: Line 237  class NoPDE:
237           assigns values to the parameters.           assigns values to the parameters.
238    
239           @param D: coefficient of the solution.           @param D: coefficient of the solution.
240           @type D: C{float}, C{int}, L{NumArray}, L{Data}           @type D: C{float}, C{int}, L{numarray.NumArray}, L{Data}
241           @param Y: right hand side           @param Y: right hand side
242           @type Y: C{float}, C{int}, L{NumArray}, L{Data}           @type Y: C{float}, C{int}, L{numarray.NumArray}, L{Data}
243           @param q: location of constraints           @param q: location of constraints
244           @type q: C{float}, C{int}, L{NumArray}, L{Data}           @type q: C{float}, C{int}, L{numarray.NumArray}, L{Data}
245           @param r: value of solution at locations of constraints           @param r: value of solution at locations of constraints
246           @type r: C{float}, C{int}, L{NumArray}, L{Data}           @type r: C{float}, C{int}, L{numarray.NumArray}, L{Data}
247           """           """
248           if not D==None:           if not D==None:
249              self.__D=D              self.__D=D

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