Jupyter Notebook 显示不正确的图表

Question

I'm trying to create a square wave that increases in frequency over time but Jupiter does not know how to work with square signals from scipy or numpy. Spider does. Why is Jupyter dumb?

Answer 1

I tried this code

from scipy import signal
import numpy as np
import matplotlib.pyplot as plt
t = np.linspace(0,1,100, endpoint=True)
plt.plot(t, signal.square(2* np.pi*5*t))

on Jupyter and Colab and seems ok.

Please, could you restart kernel and try again?
In case that it doesn't work, please, provide more information.