This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.
 

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Convolution, or called folding, of two functions, f(r) and h(r), is defined as,

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In addition, convolution theorem is a useful theorem connecting the convolution in direct space to multiplication in Fourier transform space. The convolution theorem is given by,

          --------------------------- [2738b]

Multiplication theorem connects the multiplication in direct space to the convolution in Fourier transform space,

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