# Dictionary:Lagrange interpolation formula

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{{#category_index:L|Lagrange interpolation formula}} (l∂ granj’) A method of calculating a polynomial for interpolating between a set of values which are not necessarily equally spaced.

that is, in the factors multiplying *y*_{k} the factor (*x*–*x*_{k}) is omitted. Named for Joseph Louis Lagrange (1736–1813), French mathematician.