[QUOTE=mklotz;211017]A quote from...

https://www.sciencefriday.com/segmen...e-really-need/

Mathematician James Grime of the YouTube channel Numberphile has determined that 39 digits of pi—

3.14159265358979323846264338327950288420

—would suffice to calculate the circumference of the known universe to the width of a hydrogen atom. (That number is rounded, for those of you keeping track.)

JPL, on the other hand tracks Voyager 1 using pi rounded only to a measly 15 digits. https://www.jpl.nasa.gov/edu/news/20...e-really-need/