[#mp_units-exponential_distribution-0e-lambda]
= xref:mp_units.adoc[mp_units]::xref:mp_units/exponential_distribution-0e.adoc[exponential_distribution]::lambda
:relfileprefix: ../../
:mrdocs:

Returns the inverse scale parameter of the distribution.

== Synopsis

Declared in `<bits/random.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
_RealType
lambda() const;
----

== Return Value

the inverse scale parameter of the distribution.


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