# Why is the strange type signature of sqrt so long?

**URL:** <https://discourse.julialang.org/t/why-is-the-strange-type-signature-of-sqrt-so-long/32541>\
**Category:** New to Julia\
**Created:** [December 21, 2019, 8:09am UTC](https://discourse.julialang.org/t/why-is-the-strange-type-signature-of-sqrt-so-long/32541 "2019-12-21T08:09:28Z")\
**Posts on this page:** 1\
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**Author:** ![kristoffer.carlsson](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/kristoffer.carlsson/32/22_2.png) [@kristoffer.carlsson](https://discourse.julialang.org/u/kristoffer.carlsson)\
**Post date:** [December 21, 2019, 9:00am UTC](https://discourse.julialang.org/t/why-is-the-strange-type-signature-of-sqrt-so-long/32541/5 "2019-12-21T09:00:51Z")

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It is because of `StridedArray` being a union of a large number of complicated types.

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