Dear All,

The PE fuction "Curve" is a good one for a linear interpolation. With regard to the reference, the xi's and yi's should be "numeric constants". Once the curve described by the xi's and yi's were not a fix one, but might be varying based on user's inputs, is there an approach to meet that requirement?

Note that the overall calculation were built on PE, I might need to ask solution within the PE framework.

Thanks in advance!

ZYY

181121