Linear Spline¶
Linear spline is a spline whose degree is equal to 1.
It’s described by the following polynomial
\[P_i\left( x \right) = c_{1,i} + c_{2,i}\left( x - x_i \right),\]
where
\[x \in \left[ x_i, x_{i+1} \right),\]
\[c_{1,i} = f\left( x_i \right),\]
\[c_{2,i} = \left[ x_i, x_{i+1} \right]f,\]
\[i = 1, \cdots, n-1.\]
Header File¶
#include<oneapi/mkl/experimental/data_fitting.hpp>