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Barnsley fern: Difference between revisions
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=={{header|Scilab}}==
{{Works with|Scilab|5.4.0 and above}}
This version creates a list of points, defining the fern, and shows them on a plot windows, which can then be saved to a file via the GUI or the console by the user.
<lang>
iteractions=1.0d6;
XY=zeros(2,iteractions+1);
x=0;
y=0;
i=2;
while i<iteractions+2
random_numbers=rand();
xp=x;
if random_numbers(1) < 0.01 then
x = 0;
y = 0.16 * y;
elseif random_numbers(1) >= 0.01 & random_numbers(1) < 0.01+0.85 then
x = 0.85 * x + 0.04 * y;
y = -0.04 * xp + 0.85 * y + 1.6;
elseif random_numbers(1) >= 0.86 & random_numbers(1) < 0.86+0.07 then
x = 0.2 * x - 0.26 * y;
y = 0.23 * xp + 0.22 * y + 1.6;
else
x = -0.15 * x + 0.28 * y;
y = 0.26 * xp + 0.24 * y + 0.44;
end
XY(1,i)=x;
XY(2,i)=y;
i=i+1;
end
scf(0);
clf();
xname('Barnsley fern');
plot2d(XY(1,:),XY(2,:),-0)
axes=gca();
axes.isoview="on";
axes.children.children.mark_foreground=13;
</lang>
=={{header|SequenceL}}==
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