3 ms·

I appreciate your earnestness, but running your code gives: 0 (0.0, 0.01) (0.0, 0.01) 1 (4.91, 9.82) (4.91, 9.82) 2 (19.63, 19.63) (19.63, 19.63) 3 (44

• tzs 8y ago
  It's Python 3. You ran it with Python 2. In Python 2, 1/2 == 0. In Python 3, 1/2 == 0.5. That means that in the drag function, this expression: 1/2 * p * Cd * math.pi * r**2 * v**2 always gives 0 on Python 2 because of that 1/2 factor. If you want to run it on Python 2, either change the 1/2 in the drag function to 1./2 or 0.5, or add from __future__ import division at the top to tell Python 2 you want to use the Python 3 division behavior.
  • ctchocula 8y ago
    Then I stand corrected. Thank you for being patient.