File:Logarithmic-integral function.svg
Summary
| Description |
English: The graph of the logarithmic-integral function li(x). |
| Date | |
| Source | Own work |
| Author | ARAKI Satoru |
from sympy import symbols, li
from sympy.plotting import plot
x = symbols('x')
from matplotlib.pyplot import rcParams
rcParams['text.usetex']=True
rcParams['axes.grid']=True
rcParams['xtick.direction']='inout'
rcParams['ytick.direction']='inout'
rcParams['grid.linewidth']=0.1
e = 0.01
p = plot(
(li(x), (x, 0 + e, 1 - e)),
(li(x), (x, 1 + e, 5.5)),
xlim=(-0.5, 5.5),
ylim=(-1.5, 4.5),
xlabel='$x$',
ylabel='$y$',
line_color='C1',
title=r'$\displaystyle \mathrm{li}(x) = \int_0^x \frac{dt}{\ln t}$',
aspect_ratio=(1.6, 1),
show=False
)
p.save('Logarithmic-integral function.svg')
Licensing
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