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 $\varepsilon$ in the linked posts.

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 Operators Block.

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. For example, the …

Aug 19, 2015 · The set of natural numbers $\ {0,1,2,\dots\}$ is often denoted by $\omega$. There are two caveats about this notation: It is not commonly used outside of set theory, and it might not be …

Feb 12, 2026 · Questions on the meaning, history, and usage of mathematical symbols and notation. Please remember to mention where (book, paper, webpage, etc.) you encountered any mathematical …

Notation for definition and equivalence Ask Question Asked 12 years, 6 months ago Modified 2 years, 11 months ago

They are integral parts of larger notations which don't have any individual formal meaning -- the fact that expressing the entire notation in English sometimes involves saying "such that" between the things …

Feb 16, 2012 · I have seen the super- and subscripted asterisk used for images and preimages. The problem, at least for me, is that I never could remember which one is which. Because of this, I think …

May 23, 2011 · I have a question about the proper notation of the following (simplified) example: I want to express that I have a value alpha, which is the maximum of a set of n values. Each value in the set …