python

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!

python

this is a syntax error

python

print('test')

python

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}'''
)