Added extra functionality to Point class( an iterator ) and PersistenceDiagram( dimension property and __len__ func ). persistence-diagram.h: Added a new read-only dimension member and member function to access it. With a new constructor that that takes in an int type to initialize dimension. persistence-diagram.cpp: Added new bp::init constructor. Takes in an integer type to initialize the dimension. Exposed the dimension property. Exposed the size property via a __len__ method. __init__.py: Added an iterator for Point objects. This iterates over the coords and then the data( if present ).

From: Dmitriy Morozov <morozov@cs.duke.edu>
Date: Fri, 22 Feb 2008 18:39:31 -0500
State: new
Subject: Incorrect sign_at() in UPolynomial<double>
Message-Id: <cd79223a108d3900-0-artemis@metatron>
category: kinetic

UPolynomial<double>::sign_at() reports -1 as the sign of -2*x + 4 at x = 2. 
Should be 0.