To see it as native, you will have to activate the plugin
"Numeric up-down". Otherwise: set n = 12 up there.
I'm a bit disapointed Smath does NOT make itself fair
companion of the "polyroots", refecting in 'w'. Presumably
the guilty is the 32 bit as pecified in the delivery of 5346.

Usable as is and as applicable.

Jean

Integrate Quadratures Legendre Polyroots.sm (67 KiB) downloaded 64 time(s).