File: polyplot.py

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#Example polyplot.py

from pylab import *
x = linspace(-pi, pi, 100)
a = poly1d([-1.0/5040,0,1.0/120,0,-1.0/6,0,1,0])
da = a.deriv() 
y = a(x)
y1 = da(x)
plot(x,y)
plot(x,y1)
grid(True)
show()