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Results tagged with matrices
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user 15877
Questions where the notion matrix has an important or crucial role (for the latter, note the tag matrix-theory for potential use). Matrices appear in various parts of mathematics, and this tag is typically combined with other tags to make the general subject clear, such as an appropriate top-level tag ra.rings-and-algebras, co.combinatorics, etc. and other tags that might be applicable. There are also several more specialized tags concerning matrices.
11
votes
Exponential of large matrices
Suprised that no one mentioned Expokit, http://www.maths.uq.edu.au/expokit/
It does exactly what was requested, and is available in several different implementations (including Matlab).
- 143
3
votes
1
answer
240
views
An identity involving the Drazin inverse
Thanks to Higham I know that $A f(BA) = f(AB) A$ for any two matrices whose sizes are compatible. … I have validated this relationship via numerical experiments with random matrices, I just can't $prove$ it.
Can you prove (or disprove) it? …
- 143