Anybody here knows what is distance formula for curved geometry?

Question

anonymous · Answer

in non-euclidean geometry

anonymous · Answer

why are you learning non-euclidean... o.O

anonymous · Answer

are you refering to line integrals?

anonymous · Answer

I am trying to find speed of light using non-euclidean geometry........

anonymous · Answer

@completeidiot Actually I need formula to find distance between two points in curved space....... is that same as line integral?

anonymous · Answer

there is a formula, but i dont know it off the top of my head

anonymous · Answer

can you give me any clue or the name of formula? I will look online too

anonymous · Answer

$$\int\limits_{a}^{b}\sqrt{1+[f'(x)]^2}dx$$

anonymous · Answer

that's line integral isn't that? I took calc II

anonymous · Answer

too many note books to look through

anonymous · Answer

anonymous · Answer

the speed of light is constant. if that meant something to you :)

anonymous · Answer