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aidb
r

rapidity

Physical quantity, defined as inverse hyperbolic tangent of speed (divided by the speed of light)

EntityQ1366833
Subclass of

Overview

All data

9 statements · 22% with external sources · numbers in brackets are citations

Defining formula
  • \theta=c\,\mathrm{Arth}\,\frac{v}{c}=\frac{c}{2}\ln\frac{1+\dfrac{v}{c}}{1-\dfrac{v}{c}}
ISQ dimension
  • 1
Quantity symbol (LaTeX)
  • \theta unicode character: θ · notation: Θ/θ

On other databases

6 identifiers linking rapidity across the web's reference databases