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Fungrim entry: 44a529

j(τ)=256(1−λ(τ)+(λ(τ))2)3(λ(τ))2(1−λ(τ))2j(\tau) = 256 \frac{{\left(1 - \lambda(\tau) + {\left(\lambda(\tau)\right)}^{2}\right)}^{3}}{{\left(\lambda(\tau)\right)}^{2} {\left(1 - \lambda(\tau)\right)}^{2}}
Assumptions:τ∈H\tau \in \mathbb{H}
TeX:
j(\tau) = 256 \frac{{\left(1 - \lambda(\tau) + {\left(\lambda(\tau)\right)}^{2}\right)}^{3}}{{\left(\lambda(\tau)\right)}^{2} {\left(1 - \lambda(\tau)\right)}^{2}}

\tau \in \mathbb{H}
Definitions:
Fungrim symbol Notation Short description
ModularJj(τ)j(\tau) Modular j-invariant
Powab{a}^{b} Power
ModularLambdaλ(τ)\lambda(\tau) Modular lambda function
HHH\mathbb{H} Upper complex half-plane
Source code for this entry:
Entry(ID("44a529"),
    Formula(Equal(ModularJ(tau), Mul(256, Div(Pow(Add(Sub(1, ModularLambda(tau)), Pow(ModularLambda(tau), 2)), 3), Mul(Pow(ModularLambda(tau), 2), Pow(Sub(1, ModularLambda(tau)), 2)))))),
    Variables(tau),
    Assumptions(Element(tau, HH)))

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2021-03-15 19:12:00.328586 UTC