Mathematica defines ° as pi/180 so you can write degrees naturally, like in `Sin[90°]`.
In julia, it's as easy as typing `° = pi / 180`:
```
julia> 180°
3.141592653589793
julia> sin(90°)
1.0
```
I…
Now that we have more than one linear algebra–related type (Matrix, Vector, and, shortly, Square Matrix) seems like the namespace housing these should be called something other than "matrix".
I was t…