OFFSET
1,1
FORMULA
(distance, (Pi/2,1) to (3Pi/2,-1)) = sqrt(Pi^2 + 4).
EXAMPLE
distance = 3.724191778237173249940277357...
MATHEMATICA
r = N[Sqrt[Pi^2 + 4], 120]
RealDigits[r][[1]]
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Jul 01 2020
STATUS
approved