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Exam 1 Grading

Posted: Thu Feb 17, 2011 12:10 pm
by goodwine
All problems have "minor double-jeopardy" meaning computational mistakes do count off for later in the problem, but only for a small amount.
  1. Problem 1:
    • 10 points for the right conversion to a first order system
    • 5 points for the eigenvalues
    • 10 points for the eigenvectors
    • 10 points for constructing the right solution
    • -3 if only construct a 2x2 system
    • -10 if the y equation isn't included or solved
  2. Problem 2
    • 10 points for eigenvalues (4) and eigenvectors(6)
    • 15 points for particular soluion
      • if undetermined coefficients, then 5 for right assumed form, 5 for right procedure and 5 for correct coefficients
      • if diagonalization, 7 for using T^-1 A T \eta + T^-1 g, 4 for the matrix math, 3 for right scalar first order solutions and 1 to reassemble the answer
  3. Problem 3
    • 10 for eigenvalues
    • 15 for the right combination of eigenvectors/generalized eigenvectors
    • 10 points for assembling the solution correctly