4 ms·
just Googled the three line equals sign and apparently that means identical to instead of simply equals to. I can see this in the context of programming object
by edmcnulty101 5y ago
just Googled the three line equals sign and apparently that means identical to instead of simply equals to.
I can see this in the context of programming objects.
How does this apply in the context of math which is all primitives (in my understanding)
- grenoire 5y agoArticle notes: a ≡ b (mod n) means that there is an integer x such that a + nx = b. A more intuitive explanation is that the reminder of a / n equals the reminder of b / n.
- hexane360 5y agoSometimes it's used to mean "defined as". I.e. you're saying "Let <LHS> be the value computed by <RHS>", rather than saying "<LHS>, which is defined elsewhere, is equal in value to <RHS>". Other times it's used to indicate equivalence or congruence with respect to some equivalency class. In other words, it's a weaker form of equality, the opposite of how's it's used in, say, Javascript. For instance, (1, 2) === (2, 4) over the equivalency class of the rational numbers. The latter is how it's used in this context. a === b (mod c) means that "a is congruent to b under the mod c equivalency relation".