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# §10 Hash Functions and Hash-and-MAC - Lu Meng
Hash Functions Hash Functions: Definition Definition. A Hash Function with output length lll is a pair of probabilistic polynomial-time algorithms (
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Here I want to keep updated list of topics which are not presented on e-maxx and which probably should be added. To begin with:
To begin with:
- Schreier–Sims algorithm
- Berlekamp-Massey algorit…
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When I read that the FEC block code was a cyclic (31,21) code, I could not help but check the BCH code tables. n=2^(q-1), k=n-t*q just screams BCH with q=5. Try to factor out a primitive polynomial, a…
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At the moment I can see two areas where a lot of performance could be gained. One is the computation of ϕ-adic expansions and the other one I'd like to discuss here is the collapsing of a tower of ext…
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### Problem Description
- Functions for computing the Hamming weight are missing in the classes of Boolean functions and Boolean polynomials, but the Hamming weight is frequently used in the study of…
10v1 updated
5 months ago
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### Description
in the doc of sct_fmri_moco, a flag `-p` is wrongly indicated:
```
- slice-wise regularized along z using polynomial function (-p)
```
Full output:
```console
--
Spinal…
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Hi all,
I'm trying to use autograd to find the derivative of the root of a polynomial, with respect to a parameter defining that polynomial, when the root is found by numerical means. I've tried to…
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Pollard's Rho Algorithm is a very interesting and quite accessible algorithm for factoring numbers. It is not the fastest algorithm by far but in practice it outperforms trial
division by many orders…
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### Description
- [ ] Minor algorithms updates fix any warning messages.
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An issue in SageMath was raised here https://github.com/sagemath/sage/issues/35846 . When computing the characteristic polynomial of some `35 x 35` integer matrix, we get `x^27`, which does not have t…