Can anyone see a good way to visualize the SPD cone for 3x3 symmetric matrices? I'm interested in something that would highlight it's special structure, like non-smoothness.
Here's one attempt, looks pretty smooth to me
Can anyone see a good way to visualize the SPD cone for 3x3 symmetric matrices? I'm interested in something that would highlight it's special structure, like non-smoothness.
Here's one attempt, looks pretty smooth to me