Conditioning of $2\times2$ matrices¶
Copyright (C) 2020 Andreas Kloeckner
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This mini-demo gives you the opportunity to play around with the 2-norm condition number of a $2\times 2$ matrix.
- What happens if you choose the columns of the matrix to be nearly linearly dependent?
- What happens if you choose the diagonal entries to be very different in magnitude?
import numpy as np import numpy.linalg as la
la.cond([ [1.1, 0.1], [0, 1] ], 2)