Click on the grid (usually with an x-value [real part] > 1) to find the value when plugged into the Riemann Zeta Function.
The Riemann Zeta Function, f(x) is equal to the infinite sum 1/(n^x) as n goes from 1 to infinity and x is the input to the function.
For example, f(2) is equal to pi^2/6, and f(4) is pi^4/90.
Visually, the real part (x-value) describes how long each segment is, and the y-value (imaginary part) describes the rotation of each segment from the previous.