"""
Exercise 2.2 from "A primer on...
Small modification of Ex. 2.1. We print out approximate C values in 
addition to the F and C values.
"""

F = 0
dF = 10

while F <= 100:
    C = (F - 32) * 5 / 9
    C_approx = (F - 30) / 2
    print(f"{F:5d} {C:6.2f} {C_approx:6.2f}")
    F = F + dF


"""
Terminal> python f2c_approx_table.py 
    0 -17.78 -15.00
   10 -12.22 -10.00
   20  -6.67  -5.00
   30  -1.11   0.00
   40   4.44   5.00
   50  10.00  10.00
   60  15.56  15.00
   70  21.11  20.00
   80  26.67  25.00
   90  32.22  30.00
  100  37.78  35.00
"""