General Discussion

...I've never felt the need to use more than the 5 decimal plaves you listed.
In my scale-up days, we did a lot of surface to volume calculations in dish bottom reactors for better understanding heat transfer & laminar effects as we scaled up to say, 25,000 gallons.
None of our kinetic studies would have been better served by more precision than 3.14159.
If someone asked me to give me the number for pi, I'd more than likely say those 5 places, even though I know the next 5 places are 26535.