Revise what logarithms are and how to use the 'log' buttons on a scientific calculator as part of Higher Maths.

John Klippert, A Note on an Analytic Logarithm, The American Mathematical Monthly, Vol. 88, No. 5 (May, 1981), p. 347 ...

STUDENTS interested in this subject may be recommended to consult “The Construction of the Wonderful Canon of Logarithms,” by John Napier, Baron of Merchiston; translated from Latin into ...