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   -> Volume 3, Issue 8


Announce: Small error in Daubechies 'Ten lectures on wavelets'
 
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J.JURG@STUDENT.UTWENTE.NL
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PostPosted: Mon Dec 02, 2002 1:06 pm    
Subject: Announce: Small error in Daubechies 'Ten lectures on wavelets'
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Announce: Small error in Daubechies 'Ten lectures on wavelets'

When I was making some numerical examples of wavelets, I was doing some
calculating on the meyer wavelets as given in Daubechies book 'Ten lectures
on wavelets' The function v(x) she uses is given by

v(x)=x^4(35-84x+80x^2-20x^3)

but this function does not satisfy,

v(1)=1, nor v(x)+v(1-x)=1

I think the functions she wants to use is

v(x)=x^4(35-84x+70x^2-20x^3)

I don't know if this was known, but if it is new it maybe worth a few line
in the digest, it can save some hours puzzeling to find the correct function.

J. Jurg
All times are GMT + 1 Hour
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