TrainSum.polyval(grid, coeffs, offset)

\(f(x)=\sum_i{v_i(x-x_0)^i}\).

Construct a quantics tensor train representing a polynomial on the given grid. The provided grid has to be one-dimensional.The resulting TensorTrain will have the rank len(coeffs)+1.

Parameters:
  • grid (UniformGrid)

  • coeffs (Sequence[float])

  • offset (float)

Return type:

TensorTrain