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Federico Poloni's user avatar
Federico Poloni's user avatar
Federico Poloni's user avatar
Federico Poloni
  • Member for 11 years, 6 months
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About

Numerical linear algebra. Mainly matrix equations and their applications (control theory, applied probability).

(This profile was written for Mathoverflow, but Stack Exchange insists on copying it over verbatim to other sites, where it makes less sense.)

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answer
33
Good examples of "two is easy, three is hard" in computational sciences
May 16, 2019
answer
32
Why do we usually not want the eigenvalues of non-symmetric matrices?
Aug 8, 2021
answer
25
More stable algorithm to calculate `sqrt(a^2 + b^2) - abs(a)` in MatLab
Oct 30, 2023
answer
22
How to find the nearest/a near positive definite from a given matrix?
Dec 4, 2018
answer
19
Why does this preconditioner effectively reduce the condition number of a random SPD matrix?
Aug 3, 2022
question
17
Are BLAS implementations guaranteed to give the exact same result?
Feb 9, 2017
answer
15
Matrix multiplication accuracy Matlab vs Python
May 25, 2018
answer
13
What happens when I use a conjugate gradient solver with a symmetric positive semi-definite matrix?
May 28, 2020
answer
12
Checking singularity of a matrix
Aug 4, 2020
answer
12
Evaluating $\log(\exp(x)+1)$ for negative $x$
Dec 16, 2017
Top Meta posts
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(Mis)use of the matrix-equations tag
7
Canonical question on updating matrix inverses and factorizations
6
Matlab or MATLAB?
5
Is the use of @ directing my comments?
3
Replace 'numerics' tag
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What is the use of percent signs (%) at the end of lines? (Why is my macro creating extra space?)
251
How to silence the voice that tells you you're being financially irresponsible by spending 4 to 6 years doing a PhD?
145
Stack Exchange and Stack Overflow have moved to CC BY-SA 4.0
133
Inadmissible theorems in research
121
Prohibited item forgotten in hand luggage: what to do with it?