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L'Olimpo

Stefano's digital house: a mixed blog of IT, coding, tutorials and thoughts

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Deform an unstructured mesh (or how a good angle dramatically simplifies a problem)

23 April 202223 April 2022

In the attempt of coupling my Finite Elements Framework for Fjord Ice-ocean Interactions (FEFFII) with an ice code, I stumbled upon the issue of deforming the ocean mesh. If a…

What do mathematicians do? Inside a mathy mind (3b1b Summer of Math Exposition)

23 October 2021

I took part to the first Summer of Math Exposition from 3blue1brown! Check out the video! (My first ever)

A tale in topology – The large clovers meadow

18 April 2018

A small tale with a topological soul, with the aim of providing a very high level intuition for the notion of density and dense set in topology. Smally Open was…

Brute force a crackme file password with Python

13 February 20188 January 2020

I was to reverse a file for a challenge, MD5 hash 85c9feed0cb0f240a62b1e50d1ab0419. The challenge was called mio cuggino, purposefully misspelled with two g letters. It asks for three numbers. The…

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RSS Quick Math Intuitions

  • Projection methods in linear algebra numerics
  • Reproducing a transport instability in convection-diffusion equation
  • What is the Rossby number?
  • How do Dirichlet and Neumann boundary conditions affect Finite Element Methods variational formulations?
  • A gentle (and short) introduction to Gröbner Bases
  • What is the difference between Finite Differences and Finite Element Methods?
  • The role of intuitions in mathematics
  • A note on the hopes for Fully Homomorphic Signatures
  • Probability as a measure of ignorance
  • But WHY is the Lattices Bounded Distance Decoding Problem difficult?

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