Hi

I have compiled libmesh with complex number support enabled.
However,  I do not know how to use complex numbers in libmesh.

For example =

If I wish to solve

\nabla^2 u = 2+3i * f(x);

How do I represent 2+3i .

Similarly, if my governing equation is  (2i) nabla^2 u + 3u = f(x)
how do I implement the above expression.

Thank you for helping me out.

Regards
Vegnesh
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