What is this symbol called ? ????

[renegade05]

I use to sometimes... but what is the offical name of it?

Thanks.

 

[masters]

I use to sometimes... but what is the offical name of it?

Thanks.

Hi renegade05,

$\displaystyle \in$ means "is an element of" in reference to set membership. $\displaystyle a \in S$ means $\displaystyle a$ is a element of set $\displaystyle S$.

This site might be useful: http://en.wikipedia.org/wiki/Table_of_m ... al_symbols

 

[DrSteve]

The symbol itself is the greek letter epsilon.