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The $19$th letter of the Greek alphabet.

Minuscule: $\tau$
Majuscule: $\Tau$

The $\LaTeX$ code for \(\tau\) is \tau .

The $\LaTeX$ code for \(\Tau\) is \Tau .



Frequently used, and conventionally in many texts, to denote a general topology.

It is usually introduced as part of the notation $T = \struct {S, \tau}$ for a general topological space.



The usual symbol used to denote temperature is the Greek letter $\tau$ (tau).

Its $\LaTeX$ code is \tau .

Linguistic Note

The name of the Greek letter $\tau$ (tau) is properly pronounced to rhyme with cow not caw.

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