# Grassmann.jl A\\b 3x faster than Julia's StaticArrays.jl

**URL:** https://discourse.julialang.org/t/grassmann-jl-a-b-3x-faster-than-julias-staticarrays-jl/41451
**Category:** Performance
**Tags:** package, announcement, array
**Created:** [June 15, 2020, 4:12pm UTC](https://discourse.julialang.org/t/grassmann-jl-a-b-3x-faster-than-julias-staticarrays-jl/41451 "2020-06-15T16:12:53Z")
**Posts on this page:** 1
**Showing post:** 24

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### Author: ![Ronis\_BR](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ronis_br/32/50999_2.png) [@Ronis\_BR](https://discourse.julialang.org/u/Ronis_BR)
#### Post date: [June 18, 2020, 3:23am UTC](https://discourse.julialang.org/t/grassmann-jl-a-b-3x-faster-than-julias-staticarrays-jl/41451/24 "2020-06-18T03:23:47Z")

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> [@chakravala](#):
>
> Those who are serious about using Grassmann.jl should consider consulting with me.

Hum, too bad. I was really excited by your post, because I have to solve systems like `A\b` in two occasions: interpolating orbit and inside the Kalman filter (which applies to the attitude and orbit estimation inside the satellite). This performance gain would be very handy. However, given all the comments, maybe I will need to wait until those concerns are solved.

Anyway, great work! It is very interesting.

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