Source code:
Introduction to Numerical Analysis 2nd Edition F.B. Hildebrand [1987]
many sanity: Milton Abramowitz and Irene A. Stegun
Legendre is the principal Quadrature in practical Engineering works.
BTW, if you have higher Legendre than given 63/64, welcome to add/attach.
Thanks Andrey for your Polyroots Smath Examples
Jean

Maths Polyroots Rodrigues Wr.sm (13,45 KiB) scaricato 1360 volta(e).
Maths Polyroots Hermite Wr SPECIFIC.sm (20,06 KiB) scaricato 1420 volta(e).
Maths Polyroots Radau Wr.sm (28,65 KiB) scaricato 1404 volta(e).
Maths Polyroots Jacobi Wr.sm (19,23 KiB) scaricato 1331 volta(e).
Maths Polyroots Laguerre Wr.sm (31,96 KiB) scaricato 1350 volta(e).
Maths Polyroots Lobatto Wr.sm (48,38 KiB) scaricato 1357 volta(e).
Maths Polyroots ChebyShev Wr.sm (97,91 KiB) scaricato 1366 volta(e).
Maths Polyroots Hermite Wr.sm (97,52 KiB) scaricato 1384 volta(e).
Maths Polyroots Legendre Wr.sm (206,12 KiB) scaricato 1387 volta(e).