WaveletPhi
WaveletPhi[wave,x]
gives the scaling function 
for the symbolic wavelet wave evaluated at x.
WaveletPhi[wave]
gives the scaling function as a pure function.
Details and Options
- The scaling function
satisfies the recursion equation 
, where 
are the lowpass filter coefficients. - WaveletPhi[wave,x,"Dual"] gives the dual scaling function
for biorthogonal wavelets such as BiorthogonalSplineWavelet and ReverseBiorthogonalSplineWavelet. - The dual scaling function satisfies the recursion equation
, where 
are the dual lowpass filter coefficients. - The following options can be used:
-
MaxRecursion 8 number of recursive iterations to use WorkingPrecision MachinePrecision precision to use in internal computations
Examples
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See Also
WaveletPsi WaveletFilterCoefficients DiscreteWaveletTransform
Related Guides
Introduced in 2010
(8.0)