"Babbage's interest in calculating machines arose from his desire to mechanically compute sets of mathematical tables and thus eliminate the errors that inevitably crept into them when they were calculated and typeset by hand. He created this table of logarithms not by calculating them, but by comparing many different tables against one another. When differences were noted he would recalculate the correct value, thus producing the first error-free table of logarithms" (Tomash & Williams). He experimented with different colours of paper in the printing of this work for ease of reading.
The first edition of this work appeared in 1827, printed for J. Mawman. Babbage checked his work against other tables, and found nine errors: "These were printed as a list of errata following the 12-page preface in a different printing of the first edition published by B. Fellowes in 1829. A second edition in 1831 incorporated these corrections and slightly changed the introduction" (Van Sinderen).
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