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Fungrim entry: 8332d8

π=48atan⁡ ⁣(149)+128atan⁡ ⁣(157)−20atan⁡ ⁣(1239)+48atan⁡ ⁣(1110443)\pi = 48 \operatorname{atan}\!\left(\frac{1}{49}\right) + 128 \operatorname{atan}\!\left(\frac{1}{57}\right) - 20 \operatorname{atan}\!\left(\frac{1}{239}\right) + 48 \operatorname{atan}\!\left(\frac{1}{110443}\right)
TeX:
\pi = 48 \operatorname{atan}\!\left(\frac{1}{49}\right) + 128 \operatorname{atan}\!\left(\frac{1}{57}\right) - 20 \operatorname{atan}\!\left(\frac{1}{239}\right) + 48 \operatorname{atan}\!\left(\frac{1}{110443}\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("8332d8"),
    Formula(Equal(Pi, Add(Sub(Add(Mul(48, Atan(Div(1, 49))), Mul(128, Atan(Div(1, 57)))), Mul(20, Atan(Div(1, 239)))), Mul(48, Atan(Div(1, 110443)))))))

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2021-03-15 19:12:00.328586 UTC