tau

• 希腊字母表的第19个字母。在数学、物理学等领域中常用来表示特定常数或变量。

A noun referring to the 19th letter of the Greek alphabet.

1. Greek letterB2formal

   The 19th letter of the Greek alphabet (Τ, τ), often used in mathematics and science to represent various concepts.

   陶

   • The symbol tau is used to represent torque in physics.
   • In mathematics, tau is sometimes used as a constant equal to 2π.
   • The Greek letter tau looks similar to the English letter T.