Abstract
The extensive practical applications of Lejandre polynomials, in conjunction with the development of computer mathematics systems, have engendered a series of prerequisites that are conducive to the expansion of the possibilities for the application of mathematical methods. The contemporary challenge lies in identifying effective calculation and application methodologies for these polynomials within the framework of analytical calculations. The present paper proposes a code for calculating the best standard deviation by Lejandre polynomials with graphical visualisation in Maple.