PDL is really a floating point engine that makes things like singular value decomposition a one liner
This is not and never was correct. PDL has always been a numerical processing library (or engine, if you prefer), which has both bindings to various external libraries which can do linear algebra in a highly-optimised way, or read images, or search for Ngrams in DNA, etc, and also includes built-in operations for floating-point linear-algebra stuff like SVD, and operations on integers. This includes bitwise operations on integers, which is nearly the most efficient way to do boolean stuff (the most efficient way would be to treat each of the application's data items as a bit, and compact those 8 per byte, but your code has to do that itself, at least for now).
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