[Dune] [#706] Jacobian broken for Q22DLocalFiniteElement

Dune flyspray at dune-project.org
Mon Jan 18 00:27:28 CET 2010


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A new Flyspray task has been opened.  Details are below. 

User who did this - Jö Fahlke (joe) 

Attached to Project - Dune
Summary - Jacobian broken for Q22DLocalFiniteElement
Task Type - Bug Report
Category - Localfunctions
Status - New
Assigned To - 
Operating System - Unspecified / All
Severity - Low
Priority - Normal
Reported Version - SVN (pre2.0)
Due in Version - Undecided
Due Date - Undecided
Details - dune/localfunctions/test/festfem says:
======================================================================
Bug in evaluateJacobian() for finite element type N4Dune22Q22DLocalFiniteElementIddEE
    Shape function derivative does not agree with FD approximation
    Shape function 4 component 0 at position 0.2113248654051871 0.2113248654051871: derivative in direction 0 is 1.436467025586168, but -1.436467025328625 is expected.

Bug in evaluateJacobian() for finite element type N4Dune22Q22DLocalFiniteElementIddEE
    Shape function derivative does not agree with FD approximation
    Shape function 5 component 0 at position 0.2113248654051871 0.2113248654051871: derivative in direction 0 is 0.1031336922528344, but -0.1031336922113768 is expected.

Bug in evaluateJacobian() for finite element type N4Dune22Q22DLocalFiniteElementIddEE
    Shape function derivative does not agree with FD approximation
    Shape function 6 component 0 at position 0.2113248654051871 0.2113248654051871: derivative in direction 1 is 1.436467025586168, but -1.436467025328625 is expected.

Bug in evaluateJacobian() for finite element type N4Dune22Q22DLocalFiniteElementIddEE
    Shape function derivative does not agree with FD approximation
    Shape function 7 component 0 at position 0.2113248654051871 0.2113248654051871: derivative in direction 1 is 0.1031336922528344, but -0.1031336922113768 is expected.

Bug in evaluateJacobian() for finite element type N4Dune22Q22DLocalFiniteElementIddEE
    Shape function derivative does not agree with FD approximation
    Shape function 8 component 0 at position 0.2113248654051871 0.2113248654051871: derivative in direction 0 is -1.539600717839002, but 1.539600718025724 is expected.
======================================================================
and some more.  Looks like a sign error.


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http://www.dune-project.org/flyspray/index.php?do=details&task_id=706

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