Chapter 5
Modeling with Differential Equations





WeBWorK5.2 Euler's Method

Exercises

  1. Use Euler's Method to generate approximate values \(y_1\), \(y_2\), and \(y_3\) of the solution \(y(t)\) of the initial value problem

    \(\frac{dy}{dt}=y^2\)  with  \(y(0)=1\)

    and with the step size indicated in each part.
    a.   \(\Delta t = 0.1\) b.   \(\Delta t = 0.01\) c.   \(\Delta t = 0.001\)
  2. Use Euler's Method to generate approximate values \(y_1\), \(y_2\), and \(y_3\) of the \(y(t)\) solution of the initial value problem

    \(\frac{dy}{dt}=y^2+1\)  with  \(y(0)=2\)

    and with the step size indicated in each part.
    a.   \(\Delta t = 0.1\) b.   \(\Delta t = 0.01\) c.   \(\Delta t = 0.001\)
  3. Use Euler's Method to generate approximate values \(y_1\), \(y_2\), and \(y_3\) of the solution \(y(t)\) of the initial value problem

    \(\frac{dy}{dt}=t^2\)  with  \(y(0)=1\)

    and with the step size indicated in each part.
    a.   \(\Delta t = 0.1\) b.   \(\Delta t = 0.01\) c.   \(\Delta t = 0.001\)
  4. Find the exact solution of the initial value problem

    \(\frac{dy}{dt}=t^2\)  with  \(y(0)=1\).

    [Hint: Determine all the functions that have derivative \(t^2\), and let \(y(t)\) be the one that satisfies the initial condition.]
  5. Use Euler's Method to generate approximate values \(y_1\), \(y_2\), and \(y_3\) of the solution \(y(t)\) of the initial value problem

    \(\frac{dy}{dt}=t^2+1\)  with  \(y(0)=2\)

    and with the step size indicated in each part.
    a.   \(\Delta t = 0.1\) b.   \(\Delta t = 0.01\) c.   \(\Delta t = 0.001\)
  6. Find the exact solution of the initial value problem

    \(\frac{dy}{dt}=t^2+1\)  with  \(y(0)=2\).

    [Hint: Determine all the functions that have derivative \(t^2+1\), and let \(y(t)\) be the one that satisfies the initial condition.]
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