自学小波分析的教材，起点低，习题丰富目录1.Whatisthisbookallabout?2.MathematicalPreliminary.2.1LinearSpaces.2.2VectorsandVectorSpaces.2.3BasisFunctions,OrthogonalityandBiothogonality.2.4LocalBasisandRieszBasis.2.5DiscreteLinearNormedSpace.2.6ApproximationbyOrthogonalProjection.2.7MatrixAlgebraandLinearTransf