how to use math.isclose()?
If you're using python you can try the module `matplotlib`, where they have a function "isclose" that returns True if two arguments are within x percentage of one another, with respect to some number or variable called epsilon (defaults to 1e-7). 
For instance:
```python   
from matplotlib import pyplot as plt  
import numpy as np  
plt.scatter(x_points[:1000], y_points[:2000])  
for i in range(10000):  
    if float(np.random.rand()) 