This incisive text deftly combines both theory and pratical example to introduce and explore Fourier series and orthogonal functions and applications of the Fourier method to the solution of boundary -value problems. Directed to advanced undergraduate and grqaduate students in mathematics as well as in physics and engineering, the book requires no prior knowledge of partial differential equations or advanced vector analysis. Students familiar with partial derivatives, multiple integrals, vectors and elementary differential equations will find the text both accessible and challenging.

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