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Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve ...

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Excerpt from Harmonic FunctionsThe use of Trigonometric Series was first suggested by Daniel Bernouilli in 1753 in his researches on the musical vibrations Of stretched elastic strings, although Bessel's Func tions had been already (1732) employed by him and by Euler in dealing with the-vibrations of a heavy string suspended from one end, and Zonal and Spherical Harmonics were introduced by Legendre and Laplace in 1782 in dealing with the attr...

Excerpt from An Introduction to the Use of Generalized Coördinates in Mechanics and PhysicsObviously these coordinates must be numerous enough to fix the position without ambiguity and not SO numerous as to render it impossible to change any one at pleasure without changing any Of the others and without violating the restrictions of the problem.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find m...

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Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve ...

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Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve ...

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Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve ...

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