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  1. Is there a standard sign function (signum, sgn) in C/C++?

    Dec 15, 2009 · 111 It seems that most of the answers missed the original question. Is there a standard sign function (signum, sgn) in C/C++? Not in the standard library, however there is …

  2. Why doesn't Python have a sign function? - Stack Overflow

    Jan 1, 2010 · I can't understand why Python doesn't have a sign function. It has an abs builtin (which I consider sign 's sister), but no sign. In python 2.6 there is even a copysign function (in …

  3. Fourier transform of signum function - Mathematics Stack Exchange

    Jun 19, 2020 · So, to evaluate its fourier transform, one can use limiting argument, say a sequence of functions that converges to signum function, because fourier transform is a …

  4. The signum function expressed using a single formula

    Mar 11, 2021 · Edit: I completely agree with the answers given below; however, my original question was about the possibility to define the signum function using only elementary …

  5. calculus - How to smoothly approximate a sign function

    May 3, 2015 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Upvoting indicates when questions and answers are useful. What's reputation …

  6. notation - What does sgn mean? - Mathematics Stack Exchange

    Jun 9, 2016 · The reason for abbreviation is a little clearer when calling it the signum function.

  7. different between sign function and signum function?

    Sep 26, 2023 · I am confused because I know they differ in how they handle zero, but I have found several publications in computer science that use the signum function and the sign …

  8. limits - how is the signum function neither continuous nor ...

    A function can be continuous or discontinuous at the points of domain not at points outside of domain. Since $\ {0\}$ does not belong to the domain of sgn $ (x)$, the question of continuity …

  9. Calculating integral of signum - Mathematics Stack Exchange

    Oct 2, 2019 · Calculating integral of signum Ask Question Asked 6 years, 1 month ago Modified 4 years, 9 months ago

  10. Any way to extract the sign of a number in Python?

    Apr 9, 2015 · Is there any other way to extract the sign of a number? How about writing your own? Implementation