How to draw a four-leaf clover using python

How to draw a four-leaf clover using python?

Open the spyder compiler and load the module first:

Recommended: "python tutorial"

import numpy as np
import matplotlib.pyplot as plt

Used numpy and matplotlib two modules.

Create a new canvas and determine the canvas size:

plt.figure(figsize=(6,6))

The polar coordinate equation of the four-leaf clover is:

1 + cos(4*t) + 2 * (sin(4*t)) ^ 2

For this purpose, define a function:

def f(t):
    return 1+np.cos(4*t) + 2*(np.sin(4*t))**2

The value range of parameter t is 0 to 2π, subdivided into 1000 parts:

t= np.linspace(0, 2*np.pi, 1000)
print(t[-20:])

Convert polar coordinates to rectangular coordinates:

x=f(t)*np.cos(t)
y=f(t)*np.sin(t)

##Draw the four-leaf rose line:

plt.plot(x,y,c='g')

Color fill is green:

plt.fill(x,y,c='g')

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