NEWS
changeset 60020 065ecea354d0
parent 60010 5fe58ca9cf40
child 60025 d84b355f341f
     1.1 --- a/NEWS	Sat Apr 11 16:19:59 2015 +0100
     1.2 +++ b/NEWS	Sat Apr 11 22:18:33 2015 +0100
     1.3 @@ -261,6 +261,10 @@
     1.4  * Classes cancel_ab_semigroup_add / cancel_monoid_add specify explicit
     1.5  additive inverse operation. INCOMPATIBILITY.
     1.6  
     1.7 +* Complex powers and square roots. The functions "ln" and "powr" are now
     1.8 +  overloaded for types real and complex, and 0 powr y = 0 by definition.
     1.9 +  INCOMPATIBILITY: type constraints may be necessary.
    1.10 +
    1.11  * The functions "sin" and "cos" are now defined for any type of sort
    1.12  "{real_normed_algebra_1,banach}" type, so in particular on "real" and
    1.13  "complex" uniformly. Minor INCOMPATIBILITY: type constraints may be