cosines

cosine

dcosines

direction.cosines

Given a vector of three-velocities, returns their direction cosines

The Lorentz transform in special relativity; also the
gyrogroup structure of three-velocities.  Performs active and
passive transforms and has the ability to use units in which the
speed of light is not unity.  Includes some experimental
functionality for celerity and rapidity.  For general relativity,
see the 'schwarzschild' package.

Robin K S Hankin

lorentz

The Lorentz Transform in Relativistic Physics

cosines function

<dl> <dt>u</dt>
<dd>A vector of three-velocities</dd> <dt>drop</dt>
<dd>Boolean, with default <code>TRUE</code> meaning to coerce return
 value from a one-row matrix to a vector, and <code>FALSE</code> meaning
 to consistently return a matrix</dd></dl>

Arguments

Author

Direction cosines — cosines

<dl>

 <dt>u</dt>
<dd>A vector of three-velocities</dd>

 <dt>drop</dt>
<dd>Boolean, with default <code>TRUE</code> meaning to coerce return
 value from a one-row matrix to a vector, and <code>FALSE</code> meaning
 to consistently return a matrix</dd>

</dl>

cosines: Direction cosines

Description

Usage

Arguments

Author

Examples