Computing Integrals with Wavelet Scaling and Translation Parameters

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SUMMARY

The discussion focuses on computing the integral ∫_0^1 f(x) φ(2^j x - k) dx, where φ(x) is the scaling function of a Daubechies wavelet family, with j and k representing scaling and translation parameters. Recommended software for this computation includes Wolfram Mathematica, Matlab, and C code utilizing the GNU Scientific Library (GSL). The conversation emphasizes the importance of translating the integral into concrete examples for practical application.

PREREQUISITES
  • Understanding of wavelet theory, specifically Daubechies wavelets.
  • Familiarity with numerical integration techniques.
  • Proficiency in using Wolfram Mathematica or Matlab for mathematical computations.
  • Basic knowledge of C programming and the GNU Scientific Library (GSL).
NEXT STEPS
  • Explore the capabilities of Wolfram Mathematica for wavelet analysis.
  • Learn numerical integration methods in Matlab.
  • Study the implementation of wavelet transforms in C using GSL.
  • Investigate practical examples of wavelet scaling and translation in signal processing.
USEFUL FOR

Mathematicians, data scientists, and engineers involved in signal processing or numerical analysis who require advanced techniques for computing integrals using wavelet methods.

omer21
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I am looking for a software that can compute the following integral
<br /> ∫_0^1f(x)\phi(2^jx-k)dx.<br />

\phi(x) is scaling function of a wavelet family (especially Daubechies), j and k are scaling and translation parameters respectively.
 
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Basically any software that can do numerics for you, e.g. Wolfram Mathematica, Matlab, or you can write a C code as well (using GSL).
 
omer21 said:
I am looking for a software that can compute the following integral
<br /> ∫_0^1f(x)\phi(2^jx-k)dx.<br />

If you can use this
http://reference.wolfram.com/mathematica/guide/Wavelets.html
to translate what you are interested in into one or two simple concrete examples then we can try it and see if the results will be in a form you can use.
 

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