|
2 | added 2 characters in body | ||
|
Maybe it's silly to add this as a separate answer, since Noah basically said what I would have, but he didn't emphasize the one-sentence version of the answer: "the dimension of a subspace is the trace of the projection to that subspace." That and linearity are what's special about trace. |
||||
|
|
1 |
|
||
|
Maybe it's silly to add this as a separate answer, since Noah basically said what would have, but he didn't emphasize the one-sentence version of the answer: "the dimension of a subspace is the trace of the projection to that subspace." That and linearity are what's special about trace. |
||||
