Here's a special edition for π-day today ...
I created a virtual mural last year using the Bailey-Borwein-Plouffe formula for π on a wall of Whitechapel Gallery, London. The interior space was part of Elmgreen & Dragset's installation The Whitechapel Pool on the occasion of their survey exhibition This Is How We Bite Our Tongues in 2018:
The Bailey-Borwein-Plouffe formula for π is useful in quickly computing the nth hexadecimal digit of π without computing its preceding digits.
Happy π-day!