rescaling

  1. J

    Rescaling densities

    Suppose I have some collection of discrete densities $\rho_i(n)$ defined on domains $D_i$ of differing lengths (assume one dimension). Is there some standard trick for rescaling each densities' domain so that they all have some fixed domain $D$? I guess you could modify the argument to each...
  2. B

    Effect of rescaling on the Laplacian

    Hello all, My question is on Fourier series and the Laplacian. I'm working in cylinderical coordinates. Imagine a function depending on the radius and azimuth: A(r,phi). That function is periodic over 2*pi/N (phi in [0,2*pi/N]). Now I want to rescale that function so that it becomes periodic...
  3. F

    reducing # of parameters by rescaling

    I'm looking to get better at rescaling differential equations to reduce the number of parameters. I know there is no general methodology, but there are rules of thumb. It's much easier when the differential equation has a physical basis so you can work by scaling the parameters to be...
  4. J

    Normalization (re-scaling) with Negative Numbers?

    Hi All, I'd much appreciate if you could help a simple layman with the following problem: I want to normalize a number of values (indicators) into a scale between 0-1, i.e. Min Value = 0 and Max Value = 1. For this I use the following formula: normalized value(i) = (Value (i) - Min...