MotionT, TDerivative Properties | 
The MotionT, TDerivative generic type exposes the following members.
| Name | Description | |
|---|---|---|
| FirstDerivative | 
            Gets the first derivative, if it is available.
              | |
| Item | 
            Gets the indicated derivative of the motion.
            Index 1 retrieves the first derivative, if it exists.  Index 2 retrieves the second
            derivative, if it exists.  The number of available derivatives is indicated by the
            Order property.
              | |
| Order | 
            Gets the number of derivatives described by this instance.
              | |
| SecondDerivative | 
            Gets the second derivative, if it is available.
              | |
| Value | 
            Gets the coordinate value.
              |