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Visualizing Algorithms

Visualizing Algorithms
The power of the unaided mind is highly overrated… The real powers come from devising external aids that enhance cognitive abilities. —Donald Norman Algorithms are a fascinating use case for visualization. To visualize an algorithm, we don’t merely fit data to a chart; there is no primary dataset. But algorithms are also a reminder that visualization is more than a tool for finding patterns in data. #Sampling Before I can explain the first algorithm, I first need to explain the problem it addresses. Light — electromagnetic radiation — the light emanating from this screen, traveling through the air, focused by your lens and projected onto the retina — is a continuous signal. This reduction process is called sampling, and it is essential to vision. Sampling is made difficult by competing goals. Unfortunately, creating a Poisson-disc distribution is hard. You can see from these dots that best-candidate sampling produces a pleasing random distribution. Here’s how it works: Now here’s the code: Related:  Modélisationprogramming

L'agriculture croît dans les mathématiques Réduction des pesticides et engrais, prédiction des récoltes, adaptation au changement climatique... Les défis posés à l’agriculture sont multiples et les mathématiciens ont des solutions à apporter. Focus sur leurs travaux à l'occasion du Salon de l'agriculture qui se tient à la Porte de Versailles jusqu'au 3 mars. Peut-on mettre l’agriculture en équations ? Simulation de la croissance de plantes (betterave, Arabidopsis, blé, riz, maïs, tournesol, chrysanthème, concombre, tomate, poivron, caféier, pin) par le logiciel Digiplante du laboratoire de mathématiques et informatique de CentraleSupélec. Prédire la récolte grâce aux modèles Les semenciers qui mettent au point de nouvelles variétés tirent aussi un vrai bénéfice de ces modélisations, qui leur permettent d’optimiser leurs essais : sur cent essais d’une nouvelle variété réalisés en différents endroits de la planète, 20 seront effectivement conduits en conditions de culture, et le reste sera effectué par simulation.

Empresa espanhola BQ lança o Ciclop: o primeiro scanner 3D com hardware e software livre A BQ apresentou ao mercado o Ciclop, o primeiro scanner 3D DIY com software e hardware 100% livres. O novo produto da linha 3D da BQ foi concebido e desenvolvido pra que toda a comunidade possa utilizar, inovar, e fazer as suas próprias alterações de acordo com as suas necessidades específicas.O Ciclop utiliza a tecnologia de triangulação laser, baseada na captura, com uma câmera, da projeção de um feixe de luz sobre o objeto a ser digitalizado. Este objeto é colocado sobre uma plataforma giratória para capturar a sua geometria e textura. Um dos componentes mais importantes do Ciclop é a placa ZUM BT-328, desenvolvida pela BQ e baseada em ArduinoTM, que executa o firmware de controle do motor e dos lasers.

Strawberry Perl for Windows Deep Learning Is Going to Teach Us All the Lesson of Our Lives: Jobs Are for Machines — Basic income Deep Learning Is Going to Teach Us All the Lesson of Our Lives: Jobs Are for Machines (An alternate version of this article was originally published in the Boston Globe) On December 2nd, 1942, a team of scientists led by Enrico Fermi came back from lunch and watched as humanity created the first self-sustaining nuclear reaction inside a pile of bricks and wood underneath a football field at the University of Chicago. Known to history as Chicago Pile-1, it was celebrated in silence with a single bottle of Chianti, for those who were there understood exactly what it meant for humankind, without any need for words. Now, something new has occurred that, again, quietly changed the world forever. The language is a new class of machine learning known as deep learning, and the “whispered word” was a computer’s use of it to seemingly out of nowhere defeat three-time European Go champion Fan Hui, not once but five times in a row without defeat. What actually ended up happening when they faced off?

Aliasing - Wikipedia, la enciclopedia libre Properly sampled image of brick wall. Aliasing can occur in signals sampled in time, for instance digital audio, and is referred to as temporal aliasing. Aliasing can also occur in spatially sampled signals, for instance digital images. Aliasing in spatially sampled signals is called spatial aliasing. Description[edit] Aliasing example of the A letter in Times New Roman. When a digital image is viewed, a reconstruction is performed by a display or printer device, and by the eyes and the brain. An example of spatial aliasing is the Moiré pattern one can observe in a poorly pixelized image of a brick wall. Temporal aliasing is a major concern in the sampling of video and audio signals. In video or cinematography, temporal aliasing results from the limited frame rate, and causes the wagon-wheel effect, whereby a spoked wheel appears to rotate too slowly or even backwards. Bandlimited functions[edit] Bandpass signals[edit] Sampling sinusoidal functions[edit] = 1. = 0.9 and = 0.1. are and is where ).

Maimosine met le monde en modèles De l’exercice physique à la surchauffe des microprocesseurs, les mathématiciens de Maimosine, centre de modélisation et de simulation numérique, aident les chercheurs et industriels du bassin grenoblois à mieux comprendre certains phénomènes complexes. Le point commun entre un coureur en plein effort, une pièce qui vibre dans un moteur, de la glace de mer en train de se fragmenter ou des microprocesseurs qui surchauffent ? Ce sont tous des sujets d’étude pour les mathématiciens de la Maison de la modélisation et de la simulation, nanosciences et environnement (Maimosine). Créée à Grenoble en 2010 et juchée sur les hauteurs d’une tour dominant le campus universitaire, elle constitue un refuge pour les chercheurs et entreprises de la région lorsqu’un phénomène complexe leur échappe. « Modéliser, c’est mettre en équations un phénomène, le simplifier. Optimiser l’effort physique V. Un des camps de l'expédition Damodar au Népal. Localiser un phénomène de vibration Le but ? À lire aussi :

These Mesmerizing GIFs Illustrate the Art of Traditional Japanese Wood Joinery These Mesmerizing GIFs Illustrate the Art of Traditional Japanese Wood Joinery For centuries before the invention of screws and fasteners, Japanese craftsmen used complex, interlocking joints to connect pieces of wood for structures and beams, helping to create a uniquely Japanese wood aesthetic that can still be seen in the works of modern masters like Shigeru Ban. Up until recent times, however, these techniques were often the carefully guarded secrets of family carpentry guilds and unavailable for public knowledge. Even as the joints began to be documented in books and magazines, their 2-dimensional depictions remained difficult to visualize and not found in any one comprehensive source. That is, until a few years ago, when a young Japanese man working in automobile marketing began compiling all the wood joinery books he could get his hands on and using them to creating his own 3-dimensional, animated illustrations of their contents. News via Spoon & Tamago.

Install Rust - Rust Programming Language Getting started If you're just getting started with Rust and would like a more detailed walk-through, see our getting started page. Windows considerations On Windows, Rust additionally requires the C++ build tools for Visual Studio 2013 or later. The easiest way to acquire the build tools is by installing Microsoft Visual C++ Build Tools 2019 which provides just the Visual C++ build tools. For further information about configuring Rust on Windows see the Windows-specific rustup documentation. Toolchain management with rustup Rust is installed and managed by the rustup tool. If you've installed rustup in the past, you can update your installation by running rustup update. For more information see the rustup documentation. Configuring the PATH environment variable In the Rust development environment, all tools are installed to the ~/.cargo/bin %USERPROFILE%\.cargo\bin directory, and this is where you will find the Rust toolchain, including rustc, cargo, and rustup.

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