DOLFIN

Eigenvalue Solver Problem

Asked by Houdong Hu

e.x.

eigensolver.parameters["spectrum"] = "smallest real"

eigensolver.solve()

r, c, rx, cx = eigensolver.get_eigenpair(0)
r1, c1, rx1, cx1 = eigensolver.get_eigenpair(1)

If I set the parameters["spectrum"]="smallest real", is that eigensolver.get_eigenpair(0) will be the smallest one? eigensolver.get_eigenpair(1) will be the second smallest one?.......

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Houdong Hu
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Houdong Hu (vincehouhou) said : 		#1

Yes, that's ture. I prove it by testing 1D harmonic oscilator