Where did these symbols come from? - Mathematics Stack Exchange
2012年12月2日 · They are Greek letters. The first two you mentioned are Pi ($\pi$) and Phi ($\phi$), respectively (note the spelling). What you refer to as "weird E/sideways M" is the …
notation - What does "∈" mean? - Mathematics Stack Exchange
2014年6月25日 · Another possible notation for the same relation is {\displaystyle A\ni x,} A\ni x, meaning "A contains x", though it is used less often. The negation of set membership is …
notation - What does the Greek "E"-like symbol mean?
2017年9月28日 · I'm not sure how widespread this is for handwriting though (I have different symbols, but some colleagues definitely haven't). $\endgroup$ – user480945 Commented Sep …
notation - What does the symbol described below mean? (looks …
2014年4月22日 · The symbol kind of looks like this: ε, but it's more like a sideways u with a line through the middle ...
What is the meaning of ⊊? - Mathematics Stack Exchange
2020年12月22日 · This has caused the symbol "$\subset$" to become ambiguous, and authors tend to want to avoid it. To describe the relation "proper subset", they instead use the symbol …
Weird E letter? (sigma) - Mathematics Stack Exchange
Possible Duplicate: What does the math notation $\\sum$ mean? My school's prescribed book uses the weird letter E character without explaining what it is in the first chapter when it talks …
What does the sideways peace sign mean? - Answers
2024年10月13日 · The sideways peace sign is a variation of the traditional peace sign and is used as a symbol of peace and unity. It represents a wish for peace and harmony in a more modern …
What does the sideways 'peace sign' or 'V' hand gesture ... - Answers
2024年5月1日 · The sideways W hand gesture is a symbol associated with the Westside gang in urban culture. It is often used as a sign of affiliation or recognition among gang members. It …
elementary set theory - What does this notation mean? Sets ...
2016年7月2日 · The $()^c$ means the complement of whatever there's in the bracket in respect to $\Omega$ i just want to know what this big U and the flipped U means.
How do you make sideways v sign on keyboard? - Answers
2024年11月30日 · Well, honey, you won't find a sideways V sign on your standard keyboard. You'll have better luck using symbols like the greater than (>) and less than (<) signs to create …