Lagrange Polynomial by MATLAB

الملخص

Completing an idea consisting of representing numerical data with an appropriate polynomial, then calculating the value of the dependent variable from the polynomial corresponding to any given value of the independent variable leads to the necessity of having a formula to represent a certain set of numerical data on a pair of variables through the appropriate polynomial. One such formula was developed in this study. The formula is derived from Lagrange's formula. The formula obtained to represent the numerical data, for the total population of India since 1971, has been applied by an appropriate polynomial.