Unity as a unit
Mills, I. (1995) Unity as a unit. Metrologia, 31 (6). pp. 537-541. ISSN 0026-1394
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To link to this article DOI: 10.1088/0026-1394/31/6/013
The arguments for regarding the number 1 as a unit of the SI are reviewed. Examples of dimensionless quantities are presented, and problems associated with representing the values of dimensionless quantities of very small magnitude are discussed. The logarithmic ratio units bel, decibel and neper are discussed.