A scientific calculator has two 'log' buttons on it. These are marked log and ln. The log key is used for calculations of the form \({\log _{10}}x\). For example, to work out that \(\log 10000 = 4\) ...

The Calculator app on your iPhone (and iPad) is capable of a host of numeric maneuvers. Beyond performing basic and complex calculations, it can handle complicated scientific equations and convert ...

This item is openly available as part of an Open JSTOR Collection. For terms of use, please refer to our Terms & Conditions. Transactions of the American ...

THE publication of Mr. Dufton's method will, I think, serve a useful purpose. It is a common exercise in schools to plot on squared paper, numbers and their logarithms to the base 2 (see Blame's ...