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Euler's Method Tutorial

  1. Nov 21, 2015 #1
    This is not part of my homework, but it can make my life much easier. I try to prepare the Excel file as instructed in the link, but I can not find information on how to get the correct value of Theta Dot.

    http://www.esm.psu.edu/courses/emch12/IntDyn/course-docs/Euler-tutorial/

    I'm sorry that I ask the question, but I do not have classes in physics, and one of my teachers requires us to prepare a program imitating a pendulum. This excel I would like to be treated as a base, which later I move to the code.

    My question: What formula I should try to generate value assigned to a cell Theta Dot? I can not find it in the link, which I have enclosed.

    Thanks in advance!
     
  2. jcsd
  3. Nov 21, 2015 #2
    According to Euler's method,
    $$\dot{\theta}_{(t+\Delta t)}=\dot{\theta}_{t}+\ddot{\theta}_t\Delta t$$
     
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