How to type a notation as same as the below pictue
95204
How to horizontal/vertical combine two math symbols?
49195
How to add mathematical notation of a set
150496
What alternative notation of subscripts/superscripts that are also treated as SYMBOLS in Mathematica?
18834
Label equation with a symbol
348
How to look up a symbol or identify a letter from a math alphabet or other character?
69292
What is $ sign in Mathematica?
130527
How to read letters such as $\mathbb A$, $\mathbb B$, etc., or $\mathfrak A$, $\mathfrak B$, etc.?
58429
How to use mathematical symbols in listing?
145810
Superimpose letter on integral symbol
19944
How to give a name to \pic
150012
How do I mimic the functionality of ""?
61474
How to typeset indices before a symbol?
156798
How to format numbers?
87332
How to type an inline chi in Latex
53104
How to properly typeset multiletter quantities, e.g. Re or Nu (Reynolds, Nusselt numbers)
120510
How to write this statement in mathematical notation?
97025
Can I get $$...$$ to behave like \[...\]?