Jan 20, 2019 · struct A { A(const char *); auto operator<=>(const A&) const = default; }; template<A a> A operator ""_a(); In trying to understand what this feature is I've just learned that you can have …

I figured that, perhaps if I knew how to calculate these values, I would be able to generalize the technique to be able to calculate the corresponding values of $\eta _a$. So then, how does one …

Jan 30, 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 and how do I …

Jan 12, 2014 · SELECT txt1 FROM T1 WHERE txt1 LIKE '_a\%' will that result in answers that have any char+a+\+whatever? is something like Pa\pe valid as a result? are Ca% or _a% valid answers …

Define an operad $\mathtt {P}_A$ by $\mathtt {P}_A (r) = A^ {\otimes r}$ (so that $\mathtt {P}_A (0) = 1$ is the unit of $\otimes$), and the composition is given by the following formula: $$\gamma (a_1 …

Jan 5, 2022 · Named arguments are not in C++20, as the post notes, nor even in C++23. The argument id has to be numeric. Maybe this is some implementation-specific extension?

Apr 13, 2022 · Then it follows that $$ G' (x) = F' (x) = f (x) $$ Using formula $ (1)$, we can write $$ \int_a^b x f (x) dx = \left [ x G (x) \right]_a^b - \int_a^b G (x) dx \tag {2} $$

Apr 15, 2015 · _a_+_a and _a_+_ are illegal because they have another letter or underscore following the operator characters. However, they are legal if you surround them with back quotes.

Nov 14, 2024 · Let $k$ be a field and $A$ a finite-dimensional self-injective algebra over $k$, i.e., $_A A$ is an injective module.

Nov 23, 2015 · This pattern (specifically the 2nd pattern) is not refined. . does not need to be escaped within a character class. [_a-zA-Z0-9] is the same as \w; regardless, the i pattern flag is pointless.