Abstract
In this chapter polynomial interpolation is considered and extended to tensor-valued functions of one and two argument tensors. Let xα(α = 1,2,...,n) be distinct points and yα corresponding values. The polynomial of degree n-1
is called “LAGRANGE interpolation formula”, where the polynomials
are introduced. It is clear that Lα(xβ) is equal to one for α = β and equal to zero for α ≢ β. The remainder in (1) is given by
where min (x, x1,..., xn) < ξ < max (x, xl,..., xn).
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Betten, J. (1987). Interpolation Methos for Tensor Functions. In: Boehler, J.P. (eds) Applications of Tensor Functions in Solid Mechanics. International Centre for Mechanical Sciences, vol 292. Springer, Vienna. https://doi.org/10.1007/978-3-7091-2810-7_13
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DOI: https://doi.org/10.1007/978-3-7091-2810-7_13
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