20 Mar

File:Asymptote02 vectorial.svg

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Revision as of 23:13, 20 March 2013
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==Source code ([[:en:Python_(programming_language)|Python]])==

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# -*- coding: utf-8 -*-

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#

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# Script to generate an asymptote curve.

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#

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# **************************************************************

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# Example of a curve with its asymptote

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# shows that the curve may intersect the asymptote,

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# in this case an infinite amount of times.

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# **************************************************************

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#

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# Guillaume Jacquenot

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# 2013 03 20

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import numpy as np

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import matplotlib

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from matplotlib.pyplot import figure, show, rc, grid

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def makePlot(outputFilename = r'Asymptote02.svg'):

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rc('grid', linewidth = 1, linestyle = '-', color = '#a0a0a0')

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rc('xtick', labelsize = 15)

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rc('ytick', labelsize = 15)

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rc('font',**{'family':'serif','serif':['Palatino'],'size':15})

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rc('text', usetex=True)

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fig = figure()

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ax = fig.add_axes([0.12, 0.12, 0.76, 0.76])#axisbg='#d5de9c'

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n = 8

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t = np.concatenate([np.arange(0.07,2.0,0.01), np.arange(2.0,12.0,0.05)])

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x = t + np.cos(14*t)/t

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y = t + np.sin(14*t)/t

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ax.plot(x, y, color='#ee8d18', lw = 2)

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ax.plot([-4,12], [-4,12], lw = 1, ls = '--', color = 'k')

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ax.set_aspect('equal')

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grid(True)

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ax.set_xlabel('$x$')

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ax.set_ylabel('$y$',rotation=0)

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ax.set_title(r'$x=t+\frac{\cos(nt)}{t}, y=t+\frac{\sin(nt)}{t}, t>0, n = 8$',

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fontsize=15)

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fig.savefig(outputFilename)

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fig.show()

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makePlot()

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