Fungrim entry: 925fdf

\left(1 - {z}^{2}\right) \frac{d}{d z}\, P_{n}\!\left(z\right) + n z P_{n}\!\left(z\right) - n P_{n - 1}\!\left(z\right) = 0

Assumptions:

n \in \mathbb{Z}_{\ge 1}

Alternative assumptions:

z \in \mathbb{C}

TeX:

\left(1 - {z}^{2}\right) \frac{d}{d z}\, P_{n}\!\left(z\right) + n z P_{n}\!\left(z\right) - n P_{n - 1}\!\left(z\right) = 0

n \in \mathbb{Z}_{\ge 1}

z \in \mathbb{C}

Definitions:

Fungrim symbol	Notation	Short description
`Pow`	${a}^{b}$	Power
`Derivative`	$\frac{d}{d z}\, f\!\left(z\right)$	Derivative
`LegendrePolynomial`	$P_{n}\!\left(z\right)$	Legendre polynomial
`ZZGreaterEqual`	$\mathbb{Z}_{\ge n}$	Integers greater than or equal to n
`CC`	$\mathbb{C}$	Complex numbers

Source code for this entry:

Entry(ID("925fdf"),
    Formula(Equal(Sub(Add(Mul(Sub(1, Pow(z, 2)), Derivative(LegendrePolynomial(n, z), Tuple(z, z, 1))), Mul(Mul(n, z), LegendrePolynomial(n, z))), Mul(n, LegendrePolynomial(Sub(n, 1), z))), 0)),
    Variables(n, z),
    Assumptions(And(Element(n, ZZGreaterEqual(1))), Element(z, CC)))

Topics using this entry

Legendre polynomials