@chrisb Thanks very much--I didn't know about Convert.
Posts made by jfw
Free form linear algebra questions.
I am having some problems grading free form linear algebra questions like
1) Given a vector v created via randomvector enter u orthogonal to v.
2) Given a plane with randomly chosen coefficients give a basis for the plane.
In the first case I am simply trying to test that the dot product is zero but am totally unsuccessful. I have tried extracting components, changing formats for the vector and so on, all to no avail. (I'm not even trying to also test they didn't just enter zero yet!)
Ideas on how to grade this and to generally debug when the grading involves a functional of the answer greatly appreciated.