ls,
I'm preparing a course on GPU programming (NVIDIA's parallel graphics
processor) for bachelor students using J. I have a need for a more
tacit form of a julia fractal than the one shown below, which is too
much C-like. Suggestions are welcomed.
Thanks in advance,
Jan.
load'graph'
DIM=:400
NB. Julia function
julia=:4 : 0
scale=.1.5
jx=.scale*((-:DIM)-x)%-:DIM
jy=.scale*((-:DIM)-y)%-:DIM
c=._0.8j0.156
a=.jx j. jy
i=.0
while. i < 256 do.
a=.(a * a) + c
if. 1000 < | a do. i return. end.
i=.i + 1
end.
255
)
viewmat (i.DIM)julia"0 0/ (i.DIM)
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