tau background

tau

/taʊ/

Illustration tau - Image 1

noun

La lettre tau

The letter Τ/τ in the Greek, Hebrew and ancient Semitic alphabets, being the nineteenth letter of the Classical and Modern Greek, the twenty-first letter of Old and Ancient Greek.

Examples :

"In Greek class, we learned that "tau" is the name of the Greek letter that looks like a capital T. "

En cours de grec, nous avons appris que « tau » est le nom de la lettre grecque qui ressemble à un T majuscule.

language writing linguistics character

Illustration tau - Image 1

noun

Tau, croix de saint Antoine

A Τ-shaped sign or structure; a Saint Anthony's cross, sometimes regarded as a sacred symbol.

Examples :

"1658: Nor shall we take in the mysticall Tau, or the Crosse of our blessed Saviour, which having in some descriptions an Empedon or crossing foot-stay, made not one single transversion. — Sir Thomas Browne, The Garden of Cyrus (Folio Society 2007, p. 168)"

1658 : Nous ne prendrons pas non plus le Tau mystique, ni la Croix de notre bienheureux Sauveur, qui, dans certaines descriptions, a un Empedon ou un appui transversal, n'a pas fait une seule transversion. — Sir Thomas Browne, The Garden of Cyrus (Folio Society 2007, p. 168)

religion sign structure mythology

Illustration tau - Image 1

noun

Un méson tau, maintenant généralement connu sous le nom de kaon

A tau meson, now usually known as a kaon.

Examples :

"While researching particle physics, I learned that what was once called a "tau" is now more commonly known as a kaon. "

En faisant des recherches sur la physique des particules, j'ai appris que ce qu'on appelait autrefois un "tau" est maintenant plus communément appelé un kaon.

Illustration tau - Image 1

noun

Tauon

An unstable heavy lepton, which decays into a muon or electron; a tauon.

Examples :

"The physicist detected a tau particle decaying into an electron and two neutrinos in the experiment. "

Le physicien a détecté une particule tau se désintégrant en un électron et deux neutrinos dans l'expérience.

physics technical

Illustration tau - Image 1

noun

Protéine tau

Tau protein, a type of protein that stabilizes microtubules in the human central nervous system, failures of which are associated with forms of dementia.

Examples :

"In Alzheimer's disease, the abnormal clumping of tau protein disrupts brain function, leading to memory loss. "

Dans la maladie d'Alzheimer, l'agglutination anormale de la protéine tau perturbe la fonction cérébrale, entraînant une perte de mémoire.

medicine biochemistry biology anatomy physiology disease

Illustration tau - Image 1

noun

Mesure de la sensibilité de la valeur d'une option aux variations de la volatilité implicite du prix de l'actif sous-jacent

A measurement of the sensitivity of the value of an option to changes in the implied volatility of the price of the underlying asset.

Examples :

"A high tau means the value of the option will change significantly if the market's expectation of future price volatility shifts. "

Un tau élevé signifie que la valeur de l'option changera de manière significative si l'anticipation du marché concernant la volatilité future des prix évolue.

finance business value math statistics technical

Illustration tau - Image 1

noun

Tau, constante mathématique

An irrational and transcendental constant representing the ratio of the circumference of a Euclidean circle to its radius, approximately 6.2831853071; equal to twice the value of pi. Often written τ or 2π.

Examples :

"In geometry class, we learned that tau, which is about 6.28, represents the ratio of a circle's circumference to its radius. "

En cours de géométrie, nous avons appris que tau, qui vaut environ 6,28, représente le rapport de la circonférence d'un cercle à son rayon.

math number science