Sage 4.3.2 Release Tour

Contents

Sage 4.3.2 Release Tour

Major features

much improved interface to Singular which makes using any Singular function much more efficient and easy (cf. Libraries section below)

Libraries

much improved interface to Singular which makes using any Singular function much more efficient and easy #7939

   1 sage: P.<x,y,z> = QQ[];
   2 sage: A = Matrix(ZZ,[[1,1,0],[0,1,1]])
   3 sage: toric_ideal = sage.libs.singular.ff.toric__lib.toric_ideal # we load the function
   4 sage: toric_ideal(A,"du") # the integer matrix does not tell us which ring we want
   5 Traceback (most recent call last)
   6 ...
   7 ValueError: Could not detect ring.
   8 
   9 sage: toric_ideal(A,"du",ring=P) # so we try again
  10 [x*z - y]

Geometry

a major refactoring of the Polyhedron class fixed many bugs, added new functionality, and created a cleaner structure that should make future improvements much easier.