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Fungrim entry: cbf396

π=4atan ⁣(12)+4atan ⁣(13)\pi = 4 \operatorname{atan}\!\left(\frac{1}{2}\right) + 4 \operatorname{atan}\!\left(\frac{1}{3}\right)
TeX:
\pi = 4 \operatorname{atan}\!\left(\frac{1}{2}\right) + 4 \operatorname{atan}\!\left(\frac{1}{3}\right)
Definitions:
Fungrim symbol Notation Short description
Piπ\pi The constant pi (3.14...)
Atanatan(z)\operatorname{atan}(z) Inverse tangent
Source code for this entry:
Entry(ID("cbf396"),
    Formula(Equal(Pi, Add(Mul(4, Atan(Div(1, 2))), Mul(4, Atan(Div(1, 3)))))))

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2021-03-15 19:12:00.328586 UTC