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Download as PDF; Printable version; ... the first published table of logarithms A page from Napier's Mirifici ... The history of logarithms is the story of a ...
[6]: Sec. 59, also p. 156 [4]: 16 Logarithms of sines for angles from 30 degrees to 90 degrees are then computed by finding the closest number in the radical table and its logarithm and calculating the logarithm of the desired sine by linear interpolation. He suggests several ways for computing logarithms for sines of angles less than 30 degrees.
These mathematical tables from 1925 were distributed by the College Entrance Examination Board to students taking the mathematics portions of the tests. Tables of common logarithms were used until the invention of computers and electronic calculators to do rapid multiplications, divisions, and exponentiations, including the extraction of nth roots.
Download as PDF; Printable version; ... History of logarithms; Hyperbolic logarithm; ... List of logarithmic identities; Logarithm of a matrix; Logarithm table ...
Jean-François Callet (25 October 1744 – 14 November 1798) was a French professor of mathematics who wrote an influential book of logarithm tables and taught spherical trigonometry and navigation. Callet was born in Versailles and became a professor of hydrographic engineering. [ 1 ]
The remaining logarithms of the numbers 20,001 to 90,000 were later calculated by Adriaan Vlacq in his table of logarithms of the numbers 1 to 100,000 being accurate to 10 places. Alexander John Thompson published a table of logarithms of the numbers 1 to 100,000 accurate to 20 places in 1952.
Visual representation of the Logarithmic timeline in the scale of the universe. This timeline shows the whole history of the universe, the Earth, and mankind in one table. Each row is defined in years ago, that is, years before the present date, with the earliest times at the top of the chart. In each table cell on the right, references to ...
Tables of logarithms need only include the mantissa, as the characteristic can be easily determined by counting digits from the decimal point. [31] The characteristic of 10 · x is one plus the characteristic of x, and their mantissas are the same. Thus using a three-digit log table, the logarithm of 3542 is approximated by