comm_fail | R Documentation |
Relativistic addition of three-velocities is neither commutative nor associative, and the functions documented here show this visually.
comm_fail1(u, v, bold=5, r=1)
comm_fail2(u, v, bold=5, r=1)
ass_fail(u, v, w, bold=5,r=1)
my_seg(u,start=as.3vel(0), bold=5, ...)
u , v , w , start |
Three velocities. Arguments |
bold |
Integer specifying which vector element to be drawn in bold |
r |
Radius of dotted green circle, defaulting to 1 (corresponding
to |
... |
Further arguments, passed to |
These functions are called for their side-effect of plotting a diagram.
The vignette lorentz
gives more details and
interpretation of the diagrams.
Function my_seg()
is an internal helper function.
Robin K. S. Hankin
u <- as.3vel(c(0.4,0,0))
v <- seq(as.3vel(c(0.4,-0.2,0)), as.3vel(c(-0.3,0.9,0)),len=20)
w <- as.3vel(c(0.8,-0.4,0))
comm_fail1(u=u, v=v)
comm_fail2(u=u, v=v)
ass_fail(u=u, v=v, w=w, bold=10)
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