# Is there any magic with T

**URL:** <https://discourse.julialang.org/t/is-there-any-magic-with-t/16811>\
**Category:** General Usage\
**Created:** [October 26, 2018, 12:27am UTC](https://discourse.julialang.org/t/is-there-any-magic-with-t/16811 "2018-10-26T00:27:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![LeoK987](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/leok987/32/4880_2.png) [@LeoK987](https://discourse.julialang.org/u/LeoK987)\
**Post date:** [October 26, 2018, 12:27am UTC](https://discourse.julialang.org/t/is-there-any-magic-with-t/16811/1 "2018-10-26T00:27:46Z")

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when defining a parametric something? I see symbols like T1, T2, etc got used. But can one use any other symbols?

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**Author:** ![StefanKarpinski](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stefankarpinski/32/24_2.png) [@StefanKarpinski](https://discourse.julialang.org/u/StefanKarpinski)\
**Post date:** [October 26, 2018, 12:30am UTC](https://discourse.julialang.org/t/is-there-any-magic-with-t/16811/2 "2018-10-26T00:30:48Z")

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There’s nothing special about `T`—you can use any identifier.