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Python (Matplotlib)
#!/usr/bin/env python from pylab import * rc('grid', color='#aaaaaa', linewidth = 1, linestyle = '-') figure(figsize = (6, 6)) ax = axes([0.1, 0.1, 0.8, 0.8], polar = True) t = arange(-4 * pi, 4 * pi, .1) polar(t, 1.19**t, linewidth = 2) xt, yt = xticks()[0], yticks()[0] xticks(xt, ['' for q in range(len(xt))]) yticks(yt, ['' for q in range(len(yt))]) savefig('logarithmic_spiral.svg') show()

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