New answers tagged eigensystem
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Time and memory required to diagonalize a 18000 by 18000 matrix using numpy in python
A 20000 by 20000 double-precision complex matrix requires
$20000 \times 20000 \times 8 \times 2=6.4 \mbox{gigabytes}$
of RAM. The LAPACK routines ZHEEV that will do the work for you will store the ...
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