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AdaptiveB is the data structure used for the univariate adaptive numerical operations.
A common user will have no contact with AdaptiveB since it is used internally only.
However, to provide a basic understanding on how AWFD works we give a brief description.

AdaptiveB is designed to achieve a maximum speed for the univariate operations.
For each level from to LMAX (see section 1.2) there is a double array `d[]` of size (or if respectively)
to store the wavelet coefficients. In the adaptive case not all entries of `d` are used, but just a subset.
For example, if the univariate adaptive index set is

then on level 4 all entries

`d[0...16]` are used and on level 5 just

`d[0...5]`. The active indices for each level
({0,...,16} for level 4 or {0,...,5} for level 5) are stored in another data structure

IndexSet.

koster
2003-07-29