Explanation Required: Velocity and Atmo Curves for Jet Engine Config

[Vectura]

A list of small numbers and big numbers and odd number and even numbers. What do they all mean?

[Crzyrndm]

Each of the 4 numbers defines a point on a curve that is then used for interpolation.

key = [situation] [thrustMult] [inTangent] [outTangent]

velCurve uses Mach number for it's situation, atmCurve uses atmospheric density

In/Out tangents are optional values that specify the gradient on each side of a point. Without these, Unity's interpolation can do some very strange things

[antbin]

http://forum.kerbalspaceprogram.com/threads/117038-Reverse-engineering-Jet-Engines-how-do-velCurve-and-atmCurve-work?highlight=atmCurve