Fix dynamic allocation in JacobiSVD (regression)
Optimize Simplicial Cholesky when NaturalOrdering is used.
Bug 876: implement a portable log1p function
Bug 876, matrix_log_compute_2x2: directly use logp1 instead of atanh2
Bug 876: remove usage of atanh2 in matrix power
Remove useless and non standard numext::atanh2 function.
Fix inner iterator type
In simplicial cholesky: avoid deep copy of the input matrix is this later can be used readily