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File:Mplwp chebyshevC05.svg

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Description
English: Plot of the first six Chebyshev polynomials of the first kind Cn in the interval [-2.1, 2.1]:
Date
Source Own work
Author Geek3
Other versions Mplwp chebyshevT05.svg (chebyshev C polynomials with different x-scaling)
SVG development
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This plot was created with mplwp, the Matplotlib extension for Wikipedia plots.
 
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Source code
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The plot was generated with mplwp 1.6 code

Python Matplotlib mplwp source code 
#!/usr/bin/python
# -*- coding: utf8 -*-

import matplotlib.pyplot as plt
import matplotlib as mpl
import numpy as np
from math import *

code_website = 'http://commons.wikimedia.org/wiki/User:Geek3/mplwp'
try:
    import mplwp
except ImportError, er:
    print 'ImportError:', er
    print 'You need to download mplwp.py from', code_website
    exit(1)

name = 'mplwp_chebyshevC05.svg'
fig = mplwp.fig_standard(mpl)

xlim = -2.1,2.1; fig.gca().set_xlim(xlim)
ylim = -3,3; fig.gca().set_ylim(ylim)
mplwp.mark_axeszero(fig.gca())

from scipy.special import eval_chebyc

for n in range(5 + 1):
    x = np.linspace(xlim[0], xlim[1], 5001)
    y = [eval_chebyc(n, xx) for xx in x]
    plt.plot(x, y, label='C' + mplwp.unicode_sub(n), zorder=-n)

mpl.rc('legend', borderaxespad=0.6)
plt.legend(loc='upper center', ncol=6, columnspacing=1.0,
           handletextpad=0.2).get_frame().set_alpha(0.9)
plt.savefig(name)
mplwp.postprocess(name)

Licensing edit

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
You may select the license of your choice.

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Date/TimeThumbnailDimensionsUserComment
current11:51, 25 May 2015Thumbnail for version as of 11:51, 25 May 2015600 × 400 (38 KB)Geek3 (talk | contribs)Mplwp_chebyshevC05 plot by Geek3

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