# Can we do "not-a-knot spline" in Julia?

**URL:** <https://discourse.julialang.org/t/can-we-do-not-a-knot-spline-in-julia/30955>\
**Category:** General Usage\
**Created:** [November 11, 2019, 2:17pm UTC](https://discourse.julialang.org/t/can-we-do-not-a-knot-spline-in-julia/30955 "2019-11-11T14:17:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ethanminfang](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ethanminfang/32/10511_2.png) [@ethanminfang](https://discourse.julialang.org/u/ethanminfang)\
**Post date:** [November 11, 2019, 2:17pm UTC](https://discourse.julialang.org/t/can-we-do-not-a-knot-spline-in-julia/30955/1 "2019-11-11T14:17:20Z")

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I don’t know if the Cubic Spline is “not-a-knot spline” as in Matlab, or?

[http://juliamath.github.io/Interpolations.jl/latest/api/#Public-API-1](http://juliamath.github.io/Interpolations.jl/latest/api/#Public-API-1)

Thanks!

Best,  
Ethan