Adam J

That still doesn't work for me, I get a method error ``` MethodError: no method matching grade(::Grassmann.MultiVector{⟨1,1,1⟩, Int64, 8}) ``` I'm importing `using Grassmann, LinearAlgebra, AbstractTensors, Leibniz`

Also, your documentation reads: Taking a projection into a specific grade of a MultiVector is usually written $\langle A\rangle_n$ ​ and can be done using the soft brackets, like so...

The line which shows this syntax in your documentation is [here](https://github.com/chakravala/Grassmann.jl/blame/master/docs/src/tutorials/algebra-of-space.md#L57).

Let's say that there's a set of input data that can be represented as a collection of XYZ coordinates, and we're trying to determine a mapping of each input set...

That's obviously a very simple example, and there are other ways to solve that problem, but the point is that many operations that are hard to represent in linear algebra...

I would like to second this merge request, the offending line causes the example to crash, and that's a bad look for an example file which is meant to demonstrate...