"""
Example from lecture 22 aug. 
How can we use more advanced mathematical formulae in our programs?
The answer is to import them from a Python module named
"math", as illustrated by the import statement
in the first line of the code. Lot's of important Python 
functionality is contained in various models, and most
programs we write in IN1900 will start with one or more
import statements.
"""

from math import *   #import everything from the math module

x = 1.2
Q = sin(x) * cos(x) + 4 * log(x)   #log is the natural logaorithm (i.e. ln)

print(Q)

"""
Usage and output:
Terminal> python formula0.py 
1.0670178174513938
"""