scikit-learn/scikit-learn — pull request #3045 by larsmans (2014-04-07 21:22:29+00:00)
Title: [MRG] sqnorm helper for fast squared norm

@ogrisel and @GaelVaroquaux already approved the idea, but this time I think I got the implementation right too. This might be useful in more places than where it's currently used.