# Passing arrays with unspecified type

**URL:** <https://discourse.julialang.org/t/passing-arrays-with-unspecified-type/39407>\
**Category:** General Usage\
**Created:** [May 13, 2020, 2:08pm UTC](https://discourse.julialang.org/t/passing-arrays-with-unspecified-type/39407 "2020-05-13T14:08:48Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![rdeits](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rdeits/32/286_2.png) [@rdeits](https://discourse.julialang.org/u/rdeits)\
**Post date:** [May 20, 2020, 3:04am UTC](https://discourse.julialang.org/t/passing-arrays-with-unspecified-type/39407/9 "2020-05-20T03:04:36Z")

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Ah, that would be `f(a::AbstractMatrix)` or equivalently `f(a::AbstractArray{T, 2}) where T`

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