''' Purpose: naming allows abstraction
    Author:  Jim Cohoon
    ID:      jpc
'''

# get access to Python math computational resources
import math  # gives the program access to the math library


# demonstrate the two math constants
print( 'Python approximation of pi:', math.pi ) # To get something out of the library, you must type math. The dot represents selection.
print( 'Python approximation of Euler\'s number:', math.e )


print()
print()

# show some math computation
a = math.radians( 30 )
b = math.radians( 45 )

sin_a = math.sin( a ) # You can't use a space or else it won't be one variable and without it it looks messy.
tan_b = math.tan( b )

print( 'sin( 30 degrees ):', sin_a )
print( 'tan( 45 degrees ):', tan_b )