Anti-de Sitter space bell. It might be described as being the "opposite" of the surface of a sphere, which has a positive curvature. General relativity is a theory of the nature of time, space and gravity in which gravity is a curvature of space and time that results from the presence of matter or energy. Energy and mass are equivalent (as expressed in the equation "E" = "mc"), and space and time can be translated into equivalent units based on the speed of light ("c" in the "E" = "mc" equation). A common analogy involves the way that a dip in a flat
Kepler's equation preferable for most applications. Alternatively, Kepler's equation can be solved numerically. The solution for "e" ≠ 1 was found by Karl Stumpff in 1968, but its significance wasn't recognized. One can also write a Maclaurin series in "e". This series does not converge when "e" is larger than the Laplace limit (about 0.66), regardless of the value of "M" (unless "M" is a multiple of ), but it converges for all "M" if "e" is less than the Laplace limit. The coefficients in the series, other than the first (which is simply "M"), depend on "M" in a periodic way