Hi,
I've simplified the "bouncing off" part as choosing another place to
go (with no consideration of the bouncing details):
##
set.seed(1234)
par(pty = "s", pch = 19, ann = FALSE, xaxt = "n",
yaxt = "n", bty = "n")
theta = seq(0, 2 * pi, length = 512)
n = 20
nmax = 500
x = runif(n, -1, 1)
y
Dear list,
I am trying to program semi-random movement within a circle, with no particles
leaving the circle. I would like them to bounce back when they come to close to
the wall, but I don't seem to be able to get this right. Would somebody kindly
give me a hint ? This is my code so far, the
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