Why does Jest not include an Rn vector and a matrix multiplication operator?
I had matrix multiplication and Rn vectors in an earlier version but I have not implemented them yet in the current package. Honestly, Rn does not appear in my research. I usually use a more sophisticated package Rsf that includes Rn. It adds descriptions of the physical dimensions to Rn. Matrix multiplication again is not an operator I encounter in my research in its pure form. Our linear operators are such sparse matrices, that we never implement them as explicit matrices. However, I agree, it would be nice to have these packages. So if you implement them, store them in an individual package and I will add it to my distribution. That is easy because of the modularity of Jest’s packages that I discussed above.