'''  Purpose: demonstrate arithmetic and use of variables
        for naming things
'''

# name some values
x = 3.5
y = 4.25

print( "x =", x )
print( "y =", y )

# If one of the operators is a decimal, the result will be decimal.
input()

# display some float calculations
print( 'Float arithmetic' )

# This is all variable assignment! The left are variables and the right are the values.
total        = x +  y
difference   = x -  y
product      = x *  y
dec_quotient = x /  y
int_quotient = x // y
remainder    = x %  y
power        = x ** y

# Remember what we said about variables and identifiers?
# In the above section, we have several variables assigned to values of calcuations
# so Python knows the values of those variables as identifiers which is why
# we can just print( total )
# print( total ) # total is a variable that stores the value of that calculation
# print( 'total' ) # this is a string not the variable.

print( 'x + y  =', total )
print( 'x - y  =', difference )
print( 'x * y  =', product )
print( 'x / y  =', dec_quotient )
print( 'x // y =', int_quotient )
print( 'x % y  =', remainder )
print( 'x ** y =', power )

print()