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Summary

Description	English: Sequence $a_{n}=(-1)^{n}\cdot {\frac {n}{n+1}}$ with two subsequences $(a_{2k})$ and $(a_{2k+1})$ .
Date	29 May 2015
Source	Own work
Author	Stephan Kulla (User:Stephan Kulla)
Other versions	Without colored subsequences
SVG development InfoField	The SVG code is valid. This plot was created with Matplotlib. Category:Valid SVG created with Matplotlib code#Sequence%20with%20two%20accumulation%20points%20(subsequences%20colored%20differently).svg
Source code InfoField	Python code import numpy as np import matplotlib.pyplot as plt nmax = 10 ns1 = np.arange(1., nmax+1 ,2.) ns2 = ns1 + 1 plt.plot(ns1, (-1)*ns1/(ns1+1), "o") plt.plot(ns2, ns2/(ns2+1), "go") plt.xlim(ns1[0]-1, ns2[-1]+1) plt.axhline(0, color="black") plt.savefig("Sequence with two accumulation points (subsequences colored differently).svg")

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