Keywords: Sequence with two accumulation points (subsequences colored differently).svg en Sequence <math>a_n -1 n\cdot \frac n n+1 </math> with two subsequences <math> a_ 2k </math> and <math> a_ 2k+1 </math> 2015-05-29 own http //kulla me/ Stephan Kulla User Stephan Kulla other versions <gallery> File First elements of sequence with two accumulation points svg Without colored subsequences </gallery> Created with Matplotlib 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 ns10-1 ns2-1+1 plt axhline 0 color black plt savefig plot svg cc-zero Uploaded with UploadWizard Sequence mathematics |