“An Arduino Nano assembly equipped with a 4 digits 7-segments led display which will, while powered, keep calculating Pi digits and scrolling through the display, like a window scrolling left to right through the infinitude of Pi digits.
For that task, I’m using Xavier Gourdon algorithm described in his “Computation of the n-th decimal digit of π with low memory” paper and the Xavier Gourdon and Pascal Sebah paper called “N-th digit computation” that comes with a nice C++ implementation example that I ported to Arduino framework”