Recent content by JacobHempel

  1. J

    Series Solution for O.D.E (Frobenius method?)

    Homework Statement (For Physics 306: Theoretical methods of Physics... Text book: Mathematical Tools for Physics (really good!)... Assumption: 300 level class = considerably junior level class) -- Find a series solution about x=0 for y''+ysec(x) = 0, at least to a few terms. (Ans...
  2. J

    Using the analytic definition of a function

    What I don't get is letter b. I don't understand the process in which started from lim(h>0) ((f(1/2+h)-(f(1/2))/h all the way to lim(h>0)1-h/b ...
  3. J

    Using the analytic definition of a function

    Homework Statement The best way to represent this problem is with a snapshot of the problem. Hopefully that works.Homework Equations f(x) = sqrt(1^2+x^2) The Attempt at a Solution f'(1/2) = lim(h>0) (1-h)/B = 1-0/B = 1/B ... B = -1/(Sqrt(3)