PO.Spline.Cubic.Diff
Description
Calculates first derivative using natural cubic spline interpolation.
Syntax
=PO.Spline.Cubic.Diff(x_values, y_values, t)Parameters
| Parameter | Description |
|---|---|
| x_values | The x coordinate values. |
| y_values | The y coordinate values. |
| t | Point t to calculate derivative at. |