Thanks Robert, really appreciate it!
On Thu, Aug 24, 2023 at 12:19 Robert Kern <robert.k...@gmail.com> wrote: > On Wed, Aug 23, 2023 at 10:06 PM Bao Guo <guoba...@gmail.com> wrote: > >> I am writing to seek clarification on the specific differences between >> the numpy.trunc() and numpy.fix() functions. >> >> I have come across opinions stating that these two functions exist for >> backward compatibility and that they serve different functional >> requirements. However, I am puzzled as to why these functions could not be >> merged or one of them upgraded to encompass both functionalities. Despite >> my efforts in researching and contemplating on this matter, I have not come >> across a convincing explanation. >> >> Could anyone kindly shed some light on this matter? I am seeking a deeper >> understanding of the design choices made for these functions and the >> rationale behind their coexistence. >> >> Thank you in advance for your time and assistance. > > > `fix()` was added to numpy back in the super-early days when it was > emerging from Numeric, its earlier predecessor. It was named after the > equivalent MATLAB function. > > At some point thereafter, we settled on a policy for inclusion of > mathematical ufuncs into numpy. We got tired of arguing whether a special > function was "important enough" to be in numpy instead of scipy.special. > Eventually, we settled on a bright line that if a math function was in the > C99 standard, we'd go ahead and allow a ufunc for it in numpy. `trunc()` is > the name of that equivalent function in the C99 standard. It is a ufunc > instead of a plain function like `fix()` and has a (strict, I believe) > superset of functionality. You can ignore `fix()`, more or less. I'm not > sure if it's on the list for deprecation/removal in numpy 2.0, but it > certainly could be. > > -- > Robert Kern > _______________________________________________ > NumPy-Discussion mailing list -- numpy-discussion@python.org > To unsubscribe send an email to numpy-discussion-le...@python.org > https://mail.python.org/mailman3/lists/numpy-discussion.python.org/ > Member address: guoba...@gmail.com > -- Sent from Gmail Mobile
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