## Dimensionless quantity |

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, adimensional analysis **dimensionless quantity**is a to which noquantity is assigned, also known as aphysical dimension **bare, pure,**or**scalar quantity**or**a quantity of dimension one,**^{[1]}with a corresponding unit of measurement in the of the unitsi **one**(or**1**),^{[2]}^{[3]}which is not explicitly shown. dimensionless quantities are widely used in many fields, such as ,mathematics ,physics ,chemistry , andengineering . an example of a quantity that has a dimension iseconomics , measured intime .seconds - history
- pure numbers
- ratios, proportions, and angles
- buckingham π theorem
- dimensionless physical constants
- other quantities produced by nondimensionalization
- see also
- references
- external links

This article needs additional citations for . (March 2017) ( |

In **dimensionless quantity** is a **bare, pure,** or **scalar quantity** or **a quantity of dimension one,**^{[1]} with a corresponding unit of measurement in the **one** (or **1**),^{[2]}^{[3]} which is not explicitly shown. Dimensionless quantities are widely used in many fields, such as