📉図形

python +matplotlib

import numpy as np
import math
import matplotlib.pyplot as plt

xy = [(p, math.exp(p)) for p in \
      np.arange(start = - 2, stop = 2, step = 0.1)]
z = [list(t) for t in zip(*xy)]; x = z[0]; y = z[1]

fig, ax = plt.subplots()
ax.plot(x, y)

plt.show()

<svg xmlns='http://www.w3.org/2000/svg' version='1.1' viewBox='0, 0, 200, 200'>
<polygon points='100,0 158,180 4,69 195, 69 41,180'
 stroke='black' stroke-width='1' fill='none' />
</svg>

python + matplotlib patches. Polygon

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.patches as patches
import math

xy = [ (math.sin(p), math.cos(p))  for p in \
      np.arange(start = 0, stop = 4 * math.pi, step = 4 * math.pi/5)]

fig, ax = plt.subplots(figsize=(5.8, 4.2))
plt.axis("off")
ax.set_aspect('equal');ax.set_xlim([-1,1]);ax.set_ylim([-1,1])
ax.add_patch(patches.Polygon(xy, \
closed=True,facecolor="b",edgecolor="none"))

plt.show()

👨‍🏫 svg

<line x1="10" y1="30" x2="180" y2="130"/>