Interpolação polinomial de Lagrange: análise da curva de infectados e óbitos pela COVID-19 no Piauí

Abstract

The present work aims to present an analysis of the curve of infected and dead by Covid-19 in Piauí through the method of approximation by polynomial interpolation, in particular, the Lagrange Polynomial Interpolation method, through a theoretical and algebraic perspective. Allied to this, in a geometrical view, we used the Maxima free software to visualize the results of the application of the ocial data collected in the aforementioned content. We also calculated the approximation error in the application of the method in the periods analyzed, and explained a little about the history of the Covid-19 pandemic in general and in particular in the State of Piauí. For a better foundation, the research method used in this study follows a quantitative analytical nature and a literature review of the main contents related to Polynomials and Polynomial Equations,Interpolation Polynomials, Lagrange Formula and Error in the application of the method.