Double check dim-issue on nasa example

[nspyrison]

may need to bring rotation matrix R down to 2 d

[nspyrison]

Rotation matrix isn't the problem. Basis already Spans R^2, when you add the zero column and orthonormalise it is necessarily a linear combination of the basis vectors and gets dropped out. In tourr it goes to NaN, and the animation doesn't work.

Because the zero column drops out the error is thrown when trying to perform Manip Sp_px2 %*% R_3x3.

[nspyrison]

Nasa example recovered