Nothing
library("lorentz")
library("sphereplot")
u <- as.3vel(c(0,0,0.8))
v <- r3vel(3000,0.9)
w <- as.3vel(c(0,0.8,0))
n1 <- (u+v)-(v+u) # noncommutativity
n2 <- (u+(v+w)) - ((u+v)+w) # nonassociativity
rgl.sphgrid()
rgl.sphpoints(car2sph(v))
rgl.sphgrid()
rgl.sphpoints(car2sph(n1))
rgl.sphgrid()
rgl.sphpoints(car2sph(n2))
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