Unity as a Unit
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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.
[1] L. W. Turner,et al. Quantities and Units , 1991 .
[2] Units and dimensions , 1996 .
[3] E. A. Guggenheim. XLIX. Units and dimensions , 1942 .
[4] I. Mills,et al. Quantities, Units and Symbols in Physical Chemistry , 1993 .