ABSTRACT
We treated in the last chapter Legendre’s equation ( 1 - x 2 ) d 2 y d x 2 - 2 x dy dx + p ( p + 1 ) y = 0 , $$ (1 - x^{2} )\frac{{d^{2} y}}{{dx^{2} }} - 2x\frac{{dy}}{{dx}} + p(p + 1)y = 0_{,} $$ https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315108858/f4dff3a2-1feb-457b-a709-022257f02721/content/math9_1.tif"/>
