In {(x, y) | x^{2 }+ y^{2 }= 0.01}, what does the ' | ' symbol mean?
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Originally Posted by Syeve In {(x, y) | x^{2 }+ y^{2 }= 0.01}, what does the ' | ' symbol mean? In the example it means "such that". The set of ordered pairs (x,y) such that $x^2+y^2=0.01$.