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Fungrim entry: 81f500

π=227−∫01x4(1−x)41+x2 dx\pi = \frac{22}{7} - \int_{0}^{1} \frac{{x}^{4} {\left(1 - x\right)}^{4}}{1 + {x}^{2}} \, dx
TeX:
\pi = \frac{22}{7} - \int_{0}^{1} \frac{{x}^{4} {\left(1 - x\right)}^{4}}{1 + {x}^{2}} \, dx
Definitions:
Fungrim symbol Notation Short description
Piπ\pi The constant pi (3.14...)
Integral∫abf(x) dx\int_{a}^{b} f(x) \, dx Integral
Powab{a}^{b} Power
Source code for this entry:
Entry(ID("81f500"),
    Formula(Equal(Pi, Sub(Div(22, 7), Integral(Div(Mul(Pow(x, 4), Pow(Sub(1, x), 4)), Add(1, Pow(x, 2))), For(x, 0, 1))))))

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2021-03-15 19:12:00.328586 UTC