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Science Forum Index » Math - Numerical Analysis Forum » Histogram...
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| physicsonly... |
 Posted: Wed Jul 30, 2008 9:49 am |
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Guest
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Dear All,
I am a new student in the field of Numerics. I have a problem. I do
exact diagonalization using Matpack or Lapack. Now I need to plot the
density of states of the system or in other words I need to create a
Histogram of the Eigenvalues. Now I want to know what is the effective
way of doing this keeping in mind that I have typical no of data
128*128 of 100 systems(128*128*100). So when I will do the
binning(what will be the proper way of binning) I need do the average
over samples also.
Is there any way to calculate eigenvalues(not all are interesting)
which is near zeros only of a sparse matrix?
Any help will be helpful?
Looking frwd for replies.
Thanking you
Soumya Bera |
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