Trac #15388: To fix the output of real and complex logarithms when the input is NaN.
Trac #15373: To implement global height for elements of ZZ
Trac #15322: is_antichain_of_poset and is_chain_of_poset
Trac #15322: corrections requested by reviewer
Trac #13311: Handle SIGALRM by the Sage interrupt framework, change exception types
Trac #15327: tableaux improvements, fully qfolded
Trac #15327: some corrections of my own stupid bugs, plus some docstring fixes
Trac #15144: Revised version of Binary Recurrence Sequence class.
Trac #15083: More doctests from the book "Calcul mathématique avec Sage"--Chap. "linalg"
Trac #13429: add an argument in eval line. big matrices conversion to giac was broken after sage 5.2
Trac #9640: PARI error catching using callbacks
Trac #15027: primitive_root_of_unity: do not take generator with shortest string
Trac #15347: Delete yamanouchi.py
Trac #13394: Implement faster and safer WeakValueDictionary
Trac #14320: More doctests from the book "Calcul mathématique avec Sage"
Trac #14998: semidirect product for fp groups
Trac #14998: review patch.
Trac #15210: fix latex for operation tables
Trac #15305: Implement the natural coercion induced from tensor factors.
Trac #12083: new tikz method to visualize polytopes, rebased to 5.13.beta1