Update libexpat URLs for win-extras
allow explicit stored zeros in SparseMatrixCSC. closes #5424
Merge pull request #5538 from mlubin/spzeros

allow explicit stored zeros in SparseMatrixCSC
Use condition numbers in linear solver tests

Replaces magic numbers in error bounds for general dense and triangular solve tests.

Fix #5678, ref #5605
Revert "Use condition numbers in linear solver tests"

This reverts commit 9fa2d171261bd4c7021d9fe736eb1d159db93125
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.
flipsign implementation for Float32 and Float64.