Changes between Version 7 and Version 8 of u/afrank


Ignore:
Timestamp:
12/23/14 12:09:27 (10 years ago)
Author:
Adam Frank
Comment:

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  • u/afrank

    v7 v8  
    1010with the inverse
    1111
    12  [[latex($ \Xi[F]^{-1} = f(x) = \int^{+\infty}_{-\infty} F(k)) e^{(i 2 \pi k x)} dk   $)]]
     12 [[latex($ \Xi[F]^{-1} = f(x) = \int^{+\infty}_{-\infty} F(k)) e^{(i 2 \pi k x)} dk   $)]]
     13
     14And of course all the transform really means is this sum of intergrals.
     15
     16 [[latex($ F(k) = \int^{+\infty}_{-\infty} f(x) cos(2\pi kx) dx -  i\int^{+\infty}_{-\infty} f(x) sin(2\pi kx) dx $)]]
    1317
    1418Here we want to solve the signup function which is runs from -1 to 1 with a step at x=a