Let V be a vector space with vectors u; v; w; … and scalars α; β; ….The space V is an inner product space if one has defined a function(·; ·) from V × V to the reals (if the vector space is real) or to the complex (if V is complex) such that for all u; v Є V and all scalars α.
KeywordsFourier Transform Fourier Series Cauchy Sequence Column Space Closed Linear Subspace
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