notation - What does sgn mean? - Mathematics Stack Exchange
Jun 9, 2016 · Typically, $\operatorname {sgn}$ stands for the sign function $$\operatorname {sgn} (x) = \begin {cases} 1 & x > 0 \\ 0 & x = 0 \\ -1 & x < 0 \end {cases}.$$. NB the definitions of $\mathop {\rm sgn} (0)$ vary between $0$ and $1$. If $0$ is a plausible argument, you should assure yourself of the definition of $\mathop {\rm sgn}$ at $0$ in your ...
android - How to Sign an Already Compiled Apk - Stack Overflow
@baptx jarsigner is outdated since a lot of years. The only way to correctly sign an APK is apksigner from Android SDK. jarsigner is only needed for ancient Android versions before 5 (not 100% sure if it was exactly that version so may be 1 version plus or minus). –
word choice - What is the name of the symbols - and ">"?
Jun 27, 2015 · I know that ^ is called a caret, but this doesn't seem to apply to the similarly shaped but nonetheless different < and > symbols. The only names I've heard them called is the less-than sign and the greater-than sign, but those names seem rather informal and apply only to their use in math. The symbols are used in other contexts as well, so it ...
Is there a standard sign function (signum, sgn) in C/C++?
Dec 15, 2009 · There is a C99 math library function called copysign(), which takes the sign from one argument and the absolute value from the other: result = copysign(1.0, value) // double result = copysignf(1.0, value) // float result = copysignl(1.0, value) // long double will give you a result of +/- 1.0, depending on the sign of value.
Why doesn't Python have a sign function? - Stack Overflow
Jan 1, 2010 · The sign or signum function is a standard mathematical function defined as sign(z) = z/|z|. Its meaning for complex numbers is well-defined; just use that same definition with the complex version of division and absolute value. The result is a complex number whose magnitude is 1; e.g. sign(-3+4j) is -0.6+0.8j.
certificate - Signing a Windows EXE file - Stack Overflow
Oct 31, 2008 · In this example we are using the certificate c:\path\to\mycert.pfxwith the password pfxpasswordto sign the file c:\path\to\file.exe. Test Your Signature. Method 1: Using signtool. Go to: Start > Run. Type CMD> click OK. At the command prompt, enter the directory where signtoolexists. Run the following:
How do I log in using the Git terminal? - Stack Overflow
What I want to do is sign into this different account and then push from that account. I remember at one point there was a popup with a login box on it. How would I get this to show up again? So far, I have tried using the commands: git config user.name my-name git config user.email my-email. Which don't appear to have asked for any credentials.
What is the difference between log in, sign in; register, sign up; log ...
Dec 3, 2014 · both logout and sign out are the same; log in is to authenticate into a website that has different interface as guest You cannot use the logged in interface if you are a guest, e.g. Facebook; sign in is to authenticate into a website that has same interface as guest You can still use the website without signing in, e.g. Google
notation - What does "∈" mean? - Mathematics Stack Exchange
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Is there a way to gpg sign all previous commits?
Apr 18, 2023 · The use-case I wanted to solve is to sign all of my previous commits while keeping the original commits dates. Sign relevant commits. git rebase -i --rootgit commit --amend -S --no-edit && git rebase --continue # for all the relevant commits. Return commit date as author date and force push (don't forget to backup before).