PPSplineF64.ppev_single(x)

Evaluate a single x coordinate value on the pp spline.

Parameters:

x (float) – The x-axis value at which to evaluate value.

Return type:

float (or Dual or Dual2 depending upon spline type)

Notes

The value of the spline at x is the sum of the value of each b-spline evaluated at x multiplied by the spline coefficients, c.

\[\$(x) = \sum_{i=1}^n c_i B_{(i,k,\mathbf{t})}(x)\]