[#mp_units-cartesian_vector-08-unit]
= xref:mp_units.adoc[mp_units]::xref:mp_units/cartesian_vector-08.adoc[cartesian_vector]::unit
:relfileprefix: ../../
:mrdocs:

== Synopsis

Declared in `<mp‐units/cartesian_vector.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard]]
constexpr
xref:mp_units/cartesian_vector-08.adoc[cartesian_vector]
unit() const
requires treat_as_floating_point<T>;
----

== Return Value

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====

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