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Fungrim entry: a7095f

1π=12 2F1 ⁣(12,−12,1,1)\frac{1}{\pi} = \frac{1}{2} \,{}_2F_1\!\left(\frac{1}{2}, -\frac{1}{2}, 1, 1\right)
TeX:
\frac{1}{\pi} = \frac{1}{2} \,{}_2F_1\!\left(\frac{1}{2}, -\frac{1}{2}, 1, 1\right)
Definitions:
Fungrim symbol Notation Short description
Piπ\pi The constant pi (3.14...)
Hypergeometric2F1 2F1 ⁣(a,b,c,z)\,{}_2F_1\!\left(a, b, c, z\right) Gauss hypergeometric function
Source code for this entry:
Entry(ID("a7095f"),
    Formula(Equal(Div(1, Pi), Mul(Div(1, 2), Hypergeometric2F1(Div(1, 2), Neg(Div(1, 2)), 1, 1)))))

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2021-03-15 19:12:00.328586 UTC