Recent content by zebra

  1. Z

    Differential Equation - Hermite's Equation

    Find the general solution of y' + 2ty = 0 Do you have a prescribed method (like series?) If not, it is very simple Devide the Eq by y and you get y´/y = -2t Integrate ln(y) = -t2 y=exp(-t2) + C that is the general solution
  2. Z

    Need help with some Mutilvariable problems

    Hi, the derivative of a function in the direction of a vector is just a scalar product of the (unit) vector with the gradient of the function. 1) get the point P(x0,y0,z0) by plugging pi/3 for t into the parametric equation of the helix. P=(-1,0,pi) 2) get the velocity vector of the helix...
  3. Z

    How can I solve a Dirichlet problem defined for a parabolic region?

    Homework Statement Hi, I am looking for a hint, how to solve the following Dirichlet problem. All the standard textbooks have only examples for Dirichlet problems in rectangular or polar coordinate systems, but this problem is defined for a parabolic region. Homework Equations uxx+uyy=2...
Back
Top