5.10 Some Applications of Legendre Polynomials

5.10 Some Applications of Legendre Polynomials

  • In this section, we look at the details of the problems solved using Legendre polynomials.
    • The problem was stated in the previous section.

  • The eigenfunctions of Eq were found in Section 5.9.
    • We have to solve Eq.

  • The three-dimensional heat equation is satisfied by the temperature on a spherical shell.

  • As found in the previous section.
    • There is an animated version of the solution on the CD.

  • The second problem is not as familiar.

  • Problems in spherical coordinates are where these functions occur frequently.

  • We can put together some solutions.

  • We have obtained some information, so let's summarize it.

  • Product solutions of the problem were found in Section 5.8, Part B.

  • It's possible to use odd-order Legendre polynomials.

  • Before attempting a solution, think about the situation.

  • Nodal surfaces are surfaces where the function is 0 in Part C of this section.

  • There is a potential problem in the exterior of a sphere.

  • The tip is not straight.
  • The variables are changed to simplify the problem.