[Numpy-discussion] Why ndarray provides four ways to flatten?

Alexander Belopolsky ndarray at mac.com
Mon Oct 27 20:06:49 EDT 2014

Given an n-dim array x, I can do

1. x.flat
2. x.flatten()
3. x.ravel()
4. x.reshape(-1)

Each of these expressions returns a flat version of x with some
variations.  Why does NumPy implement four different ways to do essentially
the same thing?
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