# Linear Algebra - Unit vectors e\_i

**URL:** <https://discourse.julialang.org/t/linear-algebra-unit-vectors-e-i/10409>\
**Category:** Specific Domains\
**Created:** [April 18, 2018, 10:14am UTC](https://discourse.julialang.org/t/linear-algebra-unit-vectors-e-i/10409 "2018-04-18T10:14:44Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![jlperla](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jlperla/32/34332_2.png) [@jlperla](https://discourse.julialang.org/u/jlperla)\
**Post date:** [April 18, 2018, 2:31pm UTC](https://discourse.julialang.org/t/linear-algebra-unit-vectors-e-i/10409/12 "2018-04-18T14:31:15Z")

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Yes, I think this would be an excellent addition to FillArrays, along with the sort of stuff I mentioned in [Possibility of a generically sized vector of 1s and 0s similar to the UniformScalingOperator in Juila v0.7](https://discourse.julialang.org/t/possibility-of-a-generically-sized-vector-of-1s-and-0s-similar-to-the-uniformscalingoperator-in-juila-v0-7/10297)

A bold e (as an optional function name in those cases) is one possible syntactic sugar

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