Logarithms - Early works to 1800

Works from the collections

6 works

E-books
Online
Sherwin's mathematical tables, contriv'd after a most comprehensive method Containing, Dr. Wallis's account of logarithms, Dr. Halley's and Mr. Sharp's ways of constructing them; with Dr. Newton's contraction of briggs's logarithms, viz. A table of logarithms of the numbers from 1 to 101000, with the means to find readily the logarithm of any number, and the number of any logarithm, to seven places of figures: and tables of natural and logarithmic sines, tangents, secants and versed sines, to every minute of the quadrant: with the explication of use prefixed.
Date: M,DCC,LXI. [1761]
E-books
Online
Trigonometry, plane and spherical; with the construction and application of logarithms. By Thomas Simpson, F.R.S
Simpson, Thomas, 1710-1761.Date: MDCCXLVIII. [1748]
E-books
Online
A New set of logarithmic solar tables , Calculated and constructed for determining the latitude at sea, by taking two altitudes either in the forenoon or afternoon, with the intermediate time, by a common watch; and that with ease and accuracy, independent of the sun's meridional altitude. This most excellent and useful performance, doth not only produce the true latitude at any time between nine o'clock in the morning, and three in the afternoon; but also gives the true time of the day, when the greatest altitude was taken, to twenty seconds by the tables; and if a greater degree of accuracy is required, the same may be done by taking proportional parts. Whence the sun's azimuth may be determiend by one single proportion. To which is added, a complete theory, illustrating the rationale of this most useful discovery.
Date: M.DCC.LXXIII. [1773]
E-books
Online
An account of the life, writings, and inventions of John Napier , of Merchiston; by David Stewart, Earl of Buchan, and Walter Minto, L.L.D. Illustrated with copper-plates.
Buchan, David Stewart Erskine, Earl of, 1742-1829.Date: M,DCC,LXXVIII. [1778]
E-books
Online
A New sett of logarithmic solar tables , Calculated and constructed for determining the latitude at sea, by taking two altitudes either in the forenoon or afternoon, with the intermediate time by a common watch; and that with ease and accuracy, independent of the sun's meridional altitude. This most excellent and useful performance, doth not only produce the true latitude at any time between nine o'clock in the morning, and three in the afternoon; but also gives the true time of the day, when the greatest altitude was taken to thirty seconds by the tables; and if a greater degree of accuracy is required, the same may be done by taking proportional parts. Whence the sun's true Azimuth may be determined by one single proportion.
Date: 1768