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Fungrim entry: 1df686

(z2)=z(z1)2{z \choose 2} = \frac{z \left(z - 1\right)}{2}
Assumptions:zCz \in \mathbb{C}
TeX:
{z \choose 2} = \frac{z \left(z - 1\right)}{2}

z \in \mathbb{C}
Definitions:
Fungrim symbol Notation Short description
Binomial(nk){n \choose k} Binomial coefficient
CCC\mathbb{C} Complex numbers
Source code for this entry:
Entry(ID("1df686"),
    Formula(Equal(Binomial(z, 2), Div(Mul(z, Sub(z, 1)), 2))),
    Variables(z),
    Assumptions(Element(z, CC)))

Topics using this entry

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2019-06-18 07:49:59.356594 UTC