Mar 18, 2011 · It's one common notation for stating that the left-hand side is defined as (in contrast to equal to) the expression on the right-hand side.

Feb 20, 2013 · A better, but less common, notation is $\varepsilon$ (formatted with $\varepsilon$). You can find answers and comments related to that latter symbol $\varepsilon$ …

Dec 13, 2016 · An unsophisticated question from a neophyte: Given the numbers: $1,2,3,4,5$ What is the symbol for the range of the numbers? i.e. the lowest-highest number in the set. …

However, the middle signs in set builder (or quantifier) notation are not really catch-all replacements for the words "such that".

Dec 9, 2019 · The notation $\ {x \in \mathbb {R} \}$ is a little ambiguous, but would probably be understood. As Eike Schulte points out, there is something missing—either the "selection …

In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical …

Sep 11, 2017 · Sometimes $\mathbb {N}_0$ is used to denote the natural numbers including zero, so this notation may be ambiguous.

Apr 20, 2016 · I am doing IGCSE Maths, and am having a few problems with function notation. I understand the form f(x) f (x). What does the form f: x↦ y f: x ↦ y mean? Could you also give …

Jan 31, 2015 · For example we have $\\frac{0}{0}$ which is undefined or we have a multiplication of $2\\times2$ and $3\\times3$ matrices which is also undefined. Is there any symbol for …

Nov 3, 2014 · Should I use this implication notation as opposed to 'when', assuming my audience understands implications? I personally prefer the shorter versions of notation