In this paper, the unitarily invariant norm ∥·∥ on 𝕔m×n is used. We first discuss the problem under what case, a rectangular matrix A has minimum condition number K(A) = ∥A∥ ∥A⁺∥, where A⁺ designates ...

The Lethal Company teleporter is not for the faint-hearted, with the inverse option a great shortcut to the horror game’s dangerous facilities. If you’d like to do less running and take more risks, ...