Text and code provided under a Creative Commons Attribution license, CC-BY. (c) Lorena A. Barba, Gilbert Forsyth, 2013. LB thanks NSF for support via CAREER award #1149784.
def simpleadd(a, b):
    return a+b

simpleadd(3, 4)

def fibonacci(n):
    a, b = 0, 1
    for i in range(n):
        a, b = b, a + b
    return a
    

fibonacci(7)

for n in range(10):
    print fibonacci(n)

from IPython.core.display import HTML
def css_styling():
    styles = open("../styles/custom.css", "r").read()
    return HTML(styles)
css_styling()