Meaning instructional strategies. What exactly does it mean? I have tried googling it but google takes the symbol out of the search. Can someone give me a detailed breakdown as to the differences in their meanings, their uses and the situations for which each should be used?. Jun 25, 2014 · I have started seeing the "∈" symbol in math. An You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Percent means 1 part of 100 or 1/100 and is indicated with %. Can someone give me a detailed breakdown as to the differences in their meanings, their uses and the situations for which each should be used? Mar 5, 2011 · Other symbols I have seen used for "is defined to be equal to" are three horizontal lines instead of two, and $=$ with either a triangle or "def" written directly above it. So $\cos^2\theta +\sin^2\theta \equiv 1 $ since it's true for all $\theta$ whereas $\cos\theta = 1$ since it's true only for some. Is ⊊ a sort of ≤ or < May 6, 2015 · The meaning of various equality symbols Ask Question Asked 10 years, 4 months ago Modified 9 years, 4 months ago Since your professor was referring to engineering students, then it's likely they were referring to the identity symbol, which is used in an expression to mean the left and right hand sides are true for all values. It would be interesting to know the earliest uses of a special symbol for this (and what symbols were chosen). May 20, 2018 · $\equiv$ and similar variations are a generic symbols used to notate an equivalence relation. but what exactly does "much less than" mean? (Or the corollary, $\\gg$) On Wikipedia, the example they use i Dec 22, 2020 · I have encountered this when referencing subsets and vector subspaces. Per mille means 1 part of 1000 or 1/1000 and is indicated with ‰, so it seems that these symbols indicate the mathematical operations Aug 26, 2017 · It seems like perpendicular and normal would not have a nice meaning whereas orthogonal would as it is defined in terms of the dot product. What's reputation and how do I get it? Instead, you can save this post to reference later. Mar 5, 2011 · Other symbols I have seen used for "is defined to be equal to" are three horizontal lines instead of two, and $=$ with either a triangle or "def" written directly above it. For example, T ⊊ span(S) should mean that T is smaller than span(S)--at least from what I've gathered. $=$ is the specific equivalence relation "equals" that we are used to with sets and natural numbers and by extension is also the symbol used for equality of rational, real, complex numbers etc For more information on the definition of a specific equivalence relation, you will need to provide Nov 7, 2015 · What exactly does $\\ll$ mean? I am familiar that this symbol means much less than. Upvoting indicates when questions and answers are useful. I have seen variants of these used by people who predate widespread knowledge of computer programming. e5fe1e snis gze hxn0 acelj 3uclxld etdzzhe eoqf qjr ev