Question

What are dimensionless variable

Answer 1

Answer:

In dimensional analysis, a dimensionless variable is a variable to which no physical dimension is assigned, also known as a bare, pure, or scalar quantity or a quantity of dimension one,with a corresponding unit of measurement in the SI of the unit one (or 1),[2][3] which is not explicitly shown. Dimensionless variables are widely used in many fields, such as mathematics, physics, chemistry, engineering, and economics.

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