A mouse over description for TMI MTO MCO and MOI would be great, those acronyms are meaningless to me. Edit - found as labels under ΔV Breakdown heading
Could also use an explanation of what it means to "calculate a transfer". Like, the ΔV? The travel time? All possible parameters? Frustrating that if you click on "What It Does", it doesn't clarify.
Most orbital calculations are "optimizations." You are looking for either the best time or most efficient orbit that your craft can achieve. Most of the time you are guessing at initial conditions that will produce a desired orbit and then moving down a gradient to a local optima.
Other times you are looking to predict the velocity and position of an orbital body at a certain time. Since there are many large planets in the solar system this requires non-linear differential equations that can only be solved (at this time) using an approximate calculation using methods such as the Euler or Runge-Kutta method in a computer.
