# Thread: Help Identifying a Symbol

1. ## Help Identifying a Symbol

In {(x, y) | x2 + y2 = 0.01}, what does the ' | ' symbol mean?

2. ## Re: Help Identifying a Symbol

Originally Posted by Syeve
In {(x, y) | x2 + y2 = 0.01}, what does the ' | ' symbol mean?
In the example it means "such that".

The set of ordered pairs (x,y) such that $x^2+y^2=0.01$.