What is 3.14563E. And yes, this an real answer for a calculator + school

Well 3.14563 are numbers which make Pi. I'm thinking that the 'E' means 'eternal' since pi goes on forever (I've also seen this in other infinite numbers too)

E on a calculator usually means multiply by 10 to a power, there is usually a number after the E (example: E+5)

so that would mean the numbers before the E are multiplied by 10^5 (or whatever the number after the E is)