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[Anders Logg <question96782@xxxxxxxxxxxxxxxxxxxxx>]

Question #96782 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/96782

    Status: Open => Answered

Anders Logg proposed the following answer:
On Sat, Jan 09, 2010 at 05:22:23PM -0000, Lex wrote:
> New question #96782 on DOLFIN:
> https://answers.launchpad.net/dolfin/+question/96782
>
> Hello,
>
> i want to calculate some electromagnetic finite element formulations, where some of the constants, like permeability, are complex numbers. As i found no support for complex numbers, my first intention was to use the GenericMatrix interface, but the get, set and add methods in the interface are all using double values.  So my question: Is it possible to use complex matrices and numbers with the assembler and solver classes or are they restricted to real matrices? Or am i understanding something completely wrong?
>
> Regards and thanks in advance,
> Alex

It's currently limited to doubles. This means that you need to rewrite
your equation as a system of real and imaginary parts and then solve
it as a system.

--
Anders

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