PATH:
usr
/
lib64
/
python2.7
/
Demo
/
turtle
# File: tdemo_chaos.py # Author: Gregor Lingl # Date: 2009-06-24 # A demonstration of chaos from turtle import * N = 80 def f(x): return 3.9*x*(1-x) def g(x): return 3.9*(x-x**2) def h(x): return 3.9*x-3.9*x*x def jumpto(x, y): penup(); goto(x,y) def line(x1, y1, x2, y2): jumpto(x1, y1) pendown() goto(x2, y2) def coosys(): line(-1, 0, N+1, 0) line(0, -0.1, 0, 1.1) def plot(fun, start, colour): pencolor(colour) x = start jumpto(0, x) pendown() dot(5) for i in range(N): x=fun(x) goto(i+1,x) dot(5) def main(): reset() setworldcoordinates(-1.0,-0.1, N+1, 1.1) speed(0) hideturtle() coosys() plot(f, 0.35, "blue") plot(g, 0.35, "green") plot(h, 0.35, "red") # Now zoom in: for s in range(100): setworldcoordinates(0.5*s,-0.1, N+1, 1.1) return "Done!" if __name__ == "__main__": main() mainloop()
[-] tdemo_tree.py
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[-] tdemo_peace.py
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[-] tdemo_bytedesign.py
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[-] turtledemo_two_canvases.pyo
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[-] tdemo_bytedesign.pyc
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[-] tdemo_nim.pyo
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[-] tdemo_I_dontlike_tiltdemo.pyo
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[-] tdemo_yinyang.py
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[+]
..
[-] tdemo_paint.pyo
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[-] tdemo_penrose.pyo
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[-] tdemo_minimal_hanoi.pyc
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[-] tdemo_tree.pyc
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[-] turtle.cfg
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[-] tdemo_planet_and_moon.pyo
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[-] demohelp.txt
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[-] tdemo_yinyang.pyo
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[-] turtledemo_two_canvases.py
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[-] turtleDemo.pyo
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[-] tdemo_peace.pyo
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[-] tdemo_nim.py
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[-] tdemo_paint.pyc
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[-] tdemo_tree.pyo
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[-] tdemo_lindenmayer_indian.py
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[-] turtleDemo.py
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[-] tdemo_chaos.pyo
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[-] tdemo_wikipedia.pyo
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[-] about_turtle.txt
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[-] tdemo_bytedesign.pyo
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[-] about_turtledemo.txt
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[-] tdemo_nim.pyc
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[-] tdemo_minimal_hanoi.py
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[-] tdemo_colormixer.pyo
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[-] tdemo_yinyang.pyc
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[-] tdemo_I_dontlike_tiltdemo.pyc
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[-] tdemo_chaos.py
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[-] tdemo_fractalcurves.pyc
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[-] tdemo_clock.pyo
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[-] tdemo_fractalcurves.pyo
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[-] tdemo_fractalcurves.py
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[-] tdemo_paint.py
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[-] tdemo_wikipedia.pyc
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[-] tdemo_planet_and_moon.pyc
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[-] tdemo_minimal_hanoi.pyo
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[-] turtledemo_two_canvases.pyc
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[-] tdemo_planet_and_moon.py
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[-] tdemo_clock.pyc
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[-] tdemo_lindenmayer_indian.pyo
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[-] tdemo_penrose.py
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[-] tdemo_colormixer.pyc
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[-] tdemo_wikipedia.py
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[-] tdemo_peace.pyc
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[-] tdemo_clock.py
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[-] tdemo_I_dontlike_tiltdemo.py
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[-] tdemo_lindenmayer_indian.pyc
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[-] tdemo_penrose.pyc
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[-] tdemo_colormixer.py
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[-] turtleDemo.pyc
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[-] tdemo_chaos.pyc
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