# How do you read this math symbol?

by zeion
Tags: math, symbol
 P: 467 Hi, I'm studying computation theory and this symbol that looks like a capital A without the middle bar is used to denote the empty string. What is it called? Thanks. EDIT: Looks like its a capital lambda?
 Emeritus Sci Advisor PF Gold P: 16,101 Capital lambda ($\Lambda$) sounds right. I have seen it used to denote the null string.
 P: 367 For future reference: http://detexify.kirelabs.org/classify.html is a good site where you can draw a symbol and it will identify it for you ( or try to )
P: 467

## How do you read this math symbol?

 Quote by wisvuze For future reference: http://detexify.kirelabs.org/classify.html is a good site where you can draw a symbol and it will identify it for you ( or try to )
Seems useful, thanks!

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