Netbeans 7.0.1 is broken. I just spent way too much time figuring out that Netbeans 7.0.1 (from the repos) is broken. If anybody else is struggling with it, stop and upgrade to the 7.1.2 version at netbeans.org. In particular, it was silently failing to integrate with Mercurial. Additionally, many of the configuration dialogs were malfunctioning. Hopefully this helps somebody. June 1, 2014. Python approximate intetegrator 2.0. Usage: apxint.py function of x lower bound upper bound subinterval width '.