4 Nov
2010
4 Nov
'10
10:33 a.m.
On 02/11/2010 8:16 PM, Conal Elliott wrote:
Vector (Complex a) is a vector with respect to both 'a' and 'Complex a'.
Even worse, () is a vector w.r.t. *every* scalar type.
Why is this bad? () is the canonical 0-dimensional vector space. 0-dimensional vector spaces are very useful because they allow quite a number of linear algebra algorithms to be stated ``inductively'' with no funny special cases. Jacques