[#mp_units-named_constant-02-_relative_standard_uncertainty_]
= xref:mp_units.adoc[mp_units]::xref:mp_units/named_constant-02.adoc[named_constant<Symbol, U, RSU>]::_relative_standard_uncertainty_
:relfileprefix: ../../
:mrdocs:

== Synopsis

Declared in `<mp‐units/framework/unit_definitions.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
inline constexpr static
auto _relative_standard_uncertainty_ = M{};
----


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