#!/usr/bin/env python
# coding: utf-8

# In[1]:


import sys
sys.stdout.write('hello world\n')
sys.stdout.flush()
for i in range(3):
    sys.stdout.write('%s\n' % i)
    sys.stdout.flush()
sys.stderr.write('output to stderr\n')
sys.stderr.flush()
sys.stdout.write('some more stdout text\n')
sys.stdout.flush()


# # Markdown Cell
# 
# $ e^{ \pm i\theta } = \cos \theta \pm i\sin \theta + \beta $
# 
# *It* **really** is!

# In[2]:


this is a syntax error


# In[3]:


from IPython.display import Image
Image('./jupyter.png')


# In[4]:


from IPython.display import Latex
Latex('''The mass-energy equivalence is described by the famous equation
 
$$E=mc^2$$
 
discovered in 1905 by Albert Einstein. 
In natural units ($c$ = 1), the formula expresses the identity
 
\\begin{equation}
E=m
\\end{equation}''')


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