# Are there any documentation for \`CartesianIndex\`?

**URL:** <https://discourse.julialang.org/t/are-there-any-documentation-for-cartesianindex/2239>\
**Category:** New to Julia\
**Created:** [February 22, 2017, 5:26pm UTC](https://discourse.julialang.org/t/are-there-any-documentation-for-cartesianindex/2239 "2017-02-22T17:26:09Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![chobbes](https://avatars.discourse-cdn.com/v4/letter/c/848f3c/32.png) [@chobbes](https://discourse.julialang.org/u/chobbes)\
**Post date:** [February 22, 2017, 5:26pm UTC](https://discourse.julialang.org/t/are-there-any-documentation-for-cartesianindex/2239/1 "2017-02-22T17:26:09Z")

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Is `CartesianIndex` definied by `Base`? I don’t see any documentation in Docs.

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**Author:** ![malmaud](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/malmaud/32/29_2.png) [@malmaud](https://discourse.julialang.org/u/malmaud)\
**Post date:** [February 22, 2017, 5:38pm UTC](https://discourse.julialang.org/t/are-there-any-documentation-for-cartesianindex/2239/2 "2017-02-22T17:38:54Z")

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[Multidimensional algorithms and iteration](http://julialang.org/blog/2016/02/iteration) is a good starting place.

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**Author:** ![chobbes](https://avatars.discourse-cdn.com/v4/letter/c/848f3c/32.png) [@chobbes](https://discourse.julialang.org/u/chobbes)\
**Post date:** [February 22, 2017, 6:13pm UTC](https://discourse.julialang.org/t/are-there-any-documentation-for-cartesianindex/2239/3 "2017-02-22T18:13:47Z")

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Terrific. Thanks, buddy.

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**Author:** ![mbauman](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/mbauman/32/31082_2.png) [@mbauman](https://discourse.julialang.org/u/mbauman)\
**Post date:** [February 22, 2017, 6:15pm UTC](https://discourse.julialang.org/t/are-there-any-documentation-for-cartesianindex/2239/4 "2017-02-22T18:15:28Z")

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There’s new documentation in the works: [https://github.com/JuliaLang/julia/pull/20712](https://github.com/JuliaLang/julia/pull/20712)

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**Author:** ![chobbes](https://avatars.discourse-cdn.com/v4/letter/c/848f3c/32.png) [@chobbes](https://discourse.julialang.org/u/chobbes)\
**Post date:** [February 22, 2017, 6:17pm UTC](https://discourse.julialang.org/t/are-there-any-documentation-for-cartesianindex/2239/5 "2017-02-22T18:17:40Z")

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Thanks for the pointer! Other than reading the source on github, is there a more readable way to see it?