Math. 311                                           Fall 1998

                     HOMEWORK SUMMARY REPORT


  Week number: 9         
    
  Problem number: 5.5.2 

  Number of papers received:  2

  Reviewing committee (Greek letter): zeta      

  List all participating members: Chris Clearman, Kai Joe, Scott Chen



  Author[s] of paper[s] chosen for publication: none                 



  Comments:  both papers looked fine.. but we were looking for the method
we did in class, i.e. put them in matrix form and find the reverse, etc.


INSTRUCTOR'S COMMENT:  Matrix notation was not required, but it was
required that the calculation be correct!  Both authors tried to find
[partial] du/dx by differentiating an equation assuming v constant, and to
find dv/dx by differentiating the same equation assuming u constant.  But
both u and v are functions of x and y.  You need to differentiate both
given equations with respect to x and solve the result for the two partial
derivatives.  This is equivalent to the matrix method.