[#mp_units-cartesian_vector-08-operator_subs-01]
= xref:mp_units.adoc[mp_units]::xref:mp_units/cartesian_vector-08.adoc[cartesian_vector]::operator[]
:relfileprefix: ../../
:mrdocs:

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard]]
constexpr
T const&
operator[](std::size_t i) const;
----


[.small]#Created with https://www.mrdocs.com[MrDocs]#