tau

In a sentence

• El tau es una lletra grega molt utilitzada en matemàtiques.

  The tau is a Greek letter widely used in mathematics.

  Here, 'tau' refers to the Greek letter 'τ'.

• En física, la constant de temps sovint s'expressa amb el símbol tau.

  In physics, the time constant is often represented by the tau symbol.

  Here, 'tau' represents the symbol used for mathematical and scientific notations.

• Quan parlàvem de geometria, vam mencionar la relació tau amb el cercle.

  When speaking about geometry, we mentioned the tau ratio with the circle.

  In this context, 'tau' is presented as a number, double of pi, used in circle-related geometrical studies.