September 2017 Update

Task/Brownian-tree/Gnuplot/brownian-tree-1.gnuplot

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+## plotff.gp 11/27/16 aev
+## Plotting from any data-file with 2 columns (space delimited), and writing to png-file.
+## Especially useful to plot colored fractals using points.
+## Note: assign variables: clr, filename and ttl (before using load command).
+reset
+set terminal png font arial 12 size 640,640
+ofn=filename.".png"
+set output ofn
+unset border; unset xtics; unset ytics; unset key;
+set size square
+dfn=filename.".dat"
+set title ttl font "Arial:Bold,12"
+plot dfn using 1:2 with points  pt 7 ps 0.5 lc @clr
+set output

Task/Brownian-tree/Gnuplot/brownian-tree-2.gnuplot

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+## BTff.gp 11/27/16 aev
+## Plotting 6 Brownian tree pictures.
+## dat-files are PARI/GP generated output files:
+## http://rosettacode.org/wiki/Brownian_tree#PARI.2FGP
+#cd 'C:\gnupData'
+
+##BT1
+clr = '"dark-green"'
+filename = "BTAH1"
+ttl = "Brownian Tree v.#1"
+load "plotff.gp"
+
+##BT2
+clr = '"brown"'
+filename = "BTOC1"
+ttl = "Brownian Tree v.#2"
+load "plotff.gp"
+
+##BT3
+clr = '"navy"'
+filename = "BTSE1"
+ttl = "Brownian Tree v.#3"
+load "plotff.gp"
+
+##BT41
+clr = '"red"'
+filename = "BTPB1"
+ttl = "Brownian Tree v.#4-1"
+load "plotff.gp"
+
+##BT42
+clr = '"red"'
+filename = "BTPB2"
+ttl = "Brownian Tree v.#4-2"
+load "plotff.gp"
+
+##BT43
+clr = '"red"'
+filename = "BTPB3"
+ttl = "Brownian Tree v.#4-3"
+load "plotff.gp"