Test notebook

This is a text notebook. Here are some rich text, code, $\pi\simeq 3.1415$ equations.

Another equation:

$$\sum_{i=1}^n x_i$$

Python code:



In [1]:

    
# some code in python
def f(x):
    y = x * x
    return y

Random code:

console.log("hello" + 3);

Python code:



In [2]:

    
import IPython
print("Hello world!")









    



Hello world!



In [3]:

    
2*2









    Out[3]:





4



In [4]:

    
def decorator(f):
    return f



In [5]:

    
@decorator
def f(x):
    pass
3*3









    Out[5]:





9

some text



In [6]:

    
print(4*4)



In [7]:

    
%%bash
echo 'hello'









    



hello

An image:

a list

and



In [8]:

    
import numpy as np
import matplotlib.pyplot as plt
%matplotlib inline



In [9]:

    
plt.imshow(np.random.rand(5,5,4), interpolation='none');

TIP (a block quote): That's all folks. Last line.

Last paragraph.