[#mp_units-dimensionless-03]
= xref:mp_units.adoc[mp&lowbar;units]::dimensionless
:relfileprefix: ../
:mrdocs:

Quantity of dimension one

== Synopsis

Declared in `&lt;mp&hyphen;units&sol;framework&sol;quantity&lowbar;spec&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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inline constexpr xref:mp_units/dimensionless-0f.adoc[dimensionless] dimensionless = dimensionless;
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== Description

Quantity of dimension one also commonly named as &quot;dimensionless&quot; is a quantity with a dimension for which all the exponents of the factors corresponding to the base dimensions are zero&period;


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