Numerical
Explore mathematics articles on the theme of numerical.
Frances Allen (1932–2020), computing pioneer | Tangente
Frances Allen was the first woman to receive the Turing Award. She died last August, on her 88th birthday.
Numbers in computers | Tangente
Many kinds of software, from scientific computing to video games, need numbers to perform their tasks. These numbers may be integers or real numbers. Despite the enormous power of computers, approximations are inevitable; as they accumulate, they can be harmful and sometimes even catastrophic.
Metaheuristics: approximate optimization | Tangente
NP-hard problems, combinatorial explosion, models with millions of variables and exponentially many inequalities… What can we do when no optimization method works? Which method should we use when we want to solve a problem quickly?
Welcome to the world of virettes: Lissajous curves | Tangente
Marcel Guery explores the artistic potential of Lissajous curves
Generating CAD curves with Bézier | Tangente
Computer-aided design (CAD) emerged with the first computer graphics systems in the field of industrial design. Geometric design algorithms underpin 3D representation.
Modélisation des écoulements d'air autour des éoliennes : équations de Navier-Stokes et simulations numériques
The energy sector needs advanced mathematical expertise. In wind energy, modeling airflow means grappling with the formidable Navier–Stokes equations. Numerical simulation draws on a variety of discretization techniques.
Shortest paths: graph algorithms | Tangente
Is the shortest path from A to B always a straight line? Usually, yes. But when we must follow the network of roads and intersections in a city, we need a different perspective. That is where Dijkstra's algorithm comes to the rescue!
Quantum computers: a threat to encryption | Tangente
Internet communications are currently secured by symmetric encryption systems such as AES, whose keys are transmitted using an asymmetric encryption system such as RSA.
Health and Big Data: AI in the fight against cancer
Big Data has many applications in medicine, from clinical practice and research to epidemiological surveillance
Interpreting Big Data statistics correctly
Big Data's vast resources are exploited using algorithms based on statistics and probability. This explains both the successes and failures of this technology.
Data visualization: bring your data to life
Today's connected world generates a continuous stream of raw data. For anyone seeking to explore and interpret it through graphical representations, data visualization is the visible tip of the Big Data iceberg. The goal? To convey a message and make decision-making easier...
Big news briefs: digital technology, Big Data and French
Everything you always wanted to know about Big Data but were afraid to ask.
Big Data: data, science's new El Dorado
People are talking about Big Data in industry, in university programs and online. Everywhere! But what does this term actually mean? It is a revolutionary technology that affects every major sector, from finance and transportation to science.
Cryptographic machines: a history of encryption
Since antiquity, people have sought to ensure the secrecy of their correspondence through encryption. Because simple methods were easily decrypted, more sophisticated ones were invented, but they were difficult to use by hand. Machines therefore became essential.
An interactive journey through mathematical history
Reading Tangente already lets us travel through mathematical time and space—but have you ever thought of taking a virtual tour around the world and, at each stop, discovering the full history of mathematics rooted there?
Punch cards: from Jacquard to Hollerith
Interfaces are a defining feature of our culture: the punch-card control system of the Jacquard loom transformed textile manufacturing. But who remembers it today? It was a first step towards the computer, which now governs how we interact with the world.
Tangente's 30th anniversary program | Tangente Magazine
Here is the programme (which will be updated regularly) for Tangente's 30th anniversary celebrations at the Musée des arts et métiers on Sunday, December 3, 2017. Admission is free for everyone!
No doubt about it | Tangente Magazine
We were used to highly faceted origami figures with clearly visible folds. Now a group of Austrian researchers has given these forms much smoother contours.
Fractals in film: from geometry to special effects
Fractal geometry was central to the earliest computer-generated imagery on the big screen. The study of self-similar forms found in nature gave rise to the first computer-generated images… and thus spawned an entire entertainment industry!
Applying the Chinese remainder theorem to RSA cryptography
The Chinese remainder theorem finds, among other things, applications in cryptography