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Fungrim entry: 04cd99

π=1x2+1dx\pi = \int_{-\infty}^{\infty} \frac{1}{{x}^{2} + 1} \, dx
\pi = \int_{-\infty}^{\infty} \frac{1}{{x}^{2} + 1} \, dx
Fungrim symbol Notation Short description
Piπ\pi The constant pi (3.14...)
Integralabf(x)dx\int_{a}^{b} f(x) \, dx Integral
Powab{a}^{b} Power
Infinity\infty Positive infinity
Source code for this entry:
    Formula(Equal(Pi, Integral(Div(1, Add(Pow(x, 2), 1)), For(x, Neg(Infinity), Infinity)))))

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2021-03-15 19:12:00.328586 UTC