# Line of Symmetry of the Zeta Function

I heard once that 0.5 is the line of symmetry of the Riemann Zeta Function. What does that mean? A graph illustrating would be helpful.

• It means that values with $\Re(s)<1/2$ are fixed by the values with $\Re(s)>1/2$ due to the functional equation. – Diger Jan 16 at 12:40
• So for example zeta(0.6+14i) is equal to zeta(0.4+14i)? – James Jan 16 at 12:41
• – Diger Jan 16 at 12:42
• I don't read German. – James Jan 16 at 12:43
• The symmetry comes more into light using the $\Xi$ function which is an even function. – Diger Jan 16 at 12:45