Fix Typo
Fix Typo
Merge pull request #5683 from PatrickYevsukov/patch-1

Fix Typo
Merge pull request #5684 from PatrickYevsukov/patch-2

Fix Typo
nnz -> countnz
removed deprecated 'dense' from manual
update helpdb.jl
Avoid promotion to dense matrix in eigs.
Fix fields name in Hessenberg and remove inner constructor.