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 …

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 …

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 …

Jun 8, 2016 · The reason for abbreviation is a little clearer when calling it the 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 …

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 …

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 …

Apr 27, 2021 · But, since the derivative of the absolute value function is undefined at $0$, but $\operatorname {sgn}$ is defined at that point, those two functions have distinct domains and …

Oct 22, 2024 · How should I show this with the signum function? (Please check my work.) Ask Question Asked 1 year, 1 month ago Modified 1 year, 1 month ago

May 3, 2015 · It would help if you explain why you want something other than the $\tanh$ function. What is it about $\tanh$ that doesn't work for your purposes? Otherwise, people may …