[#mp_units-mag_pi]
= xref:mp_units.adoc[mp_units]::mag_pi
:relfileprefix: ../
:mrdocs:

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
inline constexpr xref:mp_units/UnitMagnitude.adoc[UnitMagnitude] auto mag_pi = mag<pi>;
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