Recent content by HAL10000

  1. H

    Identifying Independent and Dependent Variables

    Hi, I am trying to identify the independent and dependent variables in the following experiment: Two groups of patients (Epileptic and Normal) are exposed to varying wavelengths of light and their neural response is quantified and recorded. I am using...
  2. H

    MATLAB MATLAB fprintf(): Create Table of Height & Distances Earth & Mars

    I'm trying to create a table with three separate columns using fprintf(). The first column consists of a height vector h = 0:500:10000 and the second and third columns are part of the matrix Distance. I've tried looking online and I can't seem to find a way to make the vector and the matrix...
  3. H

    Critical points with multiple variables

    wow, yes, thank you :redface: this is what happens when you do too many of these problems in one night
  4. H

    Critical points with multiple variables

    Homework Statement Locate and classify the critical points of f(x,y) = (x-y)(xy-1). Homework Equations The Attempt at a Solution I found the partial derivatives with respect to x and y and I got: ∂f/∂x = -y2+2xy-1 ∂f/∂y = x2-2xy+1 After setting them both equal to zero I can't...
  5. H

    Epsilon Delta Definition of Limit

    I still can't see how this is the definition of a limit.
  6. H

    Epsilon Delta Definition of Limit

    So far, all I understand is that the definition proves that there's a value of f(x,y) as f(x,y) approaches (x0,y0) which is sufficiently close to but not exactly the value at f(x0,y0). I am probably completely off... but I just don't understand the purpose of proving this. I also don't...
  7. H

    Is a circle still considered a surface?

    Cool :) and I was so certain about that circle lol. Thanks a lot. I get a circular prabolloid with a and b = 2.
  8. H

    Is a circle still considered a surface?

    The question asked for a surface which is equidistant from all points p(x,y,z) to the point (0,0,1) and the plane through z=-1
  9. H

    Is a circle still considered a surface?

    The question asks to look for a surface and a circle is the only function which meets the conditions. Is this still considered a surface?
  10. H

    Need HELP with Laplace transform

    Got it thanks! :) Great explanation!
  11. H

    Need HELP with Laplace transform

    So I've been searching on the internet and in my textbook and I can't find a simple enough explanation of the Laplace transform of a product of functions. Is it absolutely necessary to evaluate the integral using different methods or is there an easier way?
  12. H

    Should I take these classes together in the summer?

    No, they are one hour each day (monday to thursday) and the lab is 3 hours twice a week
  13. H

    Should I take these classes together in the summer?

    I am debating whether or not I can pull off taking Organic Chemistry II, Multivariable and Engineering Statistics during the 6 week summer term. I need to do this if I want to stay on track with all my other engineering courses. Any advice?
  14. H

    Cauchy-Euler Equation: Derivatives with Respect to x and t

    My bad! makes sense now :) thank you
  15. H

    Cauchy-Euler Equation: Derivatives with Respect to x and t

    This one's a little different from my book but it uses the same ideas, I think you meant to write 1/x when substituting for the dx/dt. Thanks, for some reason I have trouble understanding differentiation notation, that was my only problem. Now it's clear.
Back
Top