vital303
Re:Investors press European fusion group to move to US for subsidies
on Thursday January 26, 2023 @12:47PM (#34535441)
Re:Investors press European fusion group to move to US for subsidies
on Thursday January 26, 2023 @12:45PM (#34535401)
Show HN: Course material for numerical methods lectures at Harvard SEAS
Re:Gambler’s Ruin Problem [pdf]
on Sunday October 02, 2022 @08:06PM (#33061792)
Here is another solution. Assume a head multiplies your money by `r = q/p', and a tail divides by `r'. This bet is fair (the expected value of a dollar is a dollar: `p r + q 1/r = q + p = 1').
Start with a dollar, after several tosses you have `r^(head-tail difference)' dollars. The game ends if head-tail difference is `N - i' (with probability `x') or if head-tail difference is `-i' (probability is `1 - x'). The expected value is still a dollar:
1 = x r^(N - i) + (1 - x) (1/r)^i
Solve this equation for x.
A library for simulating stochastic processes that consist of reactions
The Python ensemble sampling toolkit for affine-invariant MCMC
Turtle geometry: the computer as a medium for exploring mathematics
“if” statement syntax differences between C and C++
Show HN: Optimizing a DIscrete Loss to solve inverse PDE using machine learning
Jax-CFD: Computational Fluid Dynamics in Jax
Lammps Molecular Dynamics Simulator
Show HN: Interactive real-time simulation of flowing crystals
Scientific multi-agent reinforcement learning for wall-models of turbulent flows
3D Interactive Geometry Program
The non-existence of institutional facts
Machine learning–accelerated computational fluid dynamics
Computing foaming flows across scales: From breaking waves to microfluidics
If it works, it's not AI: a commercial look at AI startups (1999)
Condorcet's Jury Theorem
Re:Tesla valve
on Thursday August 12, 2021 @06:46PM (#28162586)
An interactive simulation of Tesla valve.
https://tinyurl.com/yzcr74gw
Lilium Details Certification Path for 7-Seater Jet
Architectural performance assessment of an electricvertical take-off aircraft [pdf]
Re:Show HN: Create and share a simulation of fluids, bubbles, and drops
on Wednesday March 17, 2021 @11:56AM (#26492925)
Interactive fluid simulation running in the web browser. The domain is filled by a mixture of two liquids with different densities and viscosities, effects of gravity and surface tension. Many parameters can be changed dynamically. Various boundary conditions can be set on the edges of the domain or a solid body. The plain text configuration described in the documentation is encoded in the URL for easy sharing.
Show HN: Create and share a simulation of fluids, bubbles, and drops
Configs for privacy-hating software, like Firefox and Chrome
Re:Configs for privacy-hating software, like Firefox and Chrome
on Monday September 07, 2020 @02:19PM (#24401341)
In this repository you find configuration files for privacy-hating software, like firefox, thunderbird or Google software.
Show HN: New algorithm to compute curvature from grayscale images
Show HN: Solver for multiphase flows with surface tension
Re:Bayesian inference and forecast of Covid-19 in Germany by a Max-Pla...
on Friday May 22, 2020 @06:36PM (#23277855)
I am puzzled by the paper of this groups [1]. The only evidence they present for "change points in the COVID spreading rate" is slightly better fit of the number of daily reported cases. In this repository for "Scenario assuming three change points with a weekly modulation of reported cases" they use 16 parameters to fit a smooth line (wavy pattern is because of lower case reports around the weekend). An elephant needs 8 [2]!. I also asked for clarification on stats.stackexchange [3].
[1] http://dx.doi.org/10.1126/science.abb9789