Gaussian Integral - Relation To The Gamma Function

Relation To The Gamma Function

The integrand is an even function,

Thus, after the change of variable, this turns into the Euler integral

where Γ is the gamma function. This shows why the factorial of a half-integer is a rational multiple of . More generally,

Read more about this topic:  Gaussian Integral

Famous quotes containing the words relation to the, relation to, relation and/or function:

    You see, I am alive, I am alive
    I stand in good relation to the earth
    I stand in good relation to the gods
    I stand in good relation to all that is beautiful
    I stand in good relation to the daughter of Tsen-tainte
    You see, I am alive, I am alive
    N. Scott Momaday (b. 1934)

    Only in a house where one has learnt to be lonely does one have this solicitude for things. One’s relation to them, the daily seeing or touching, begins to become love, and to lay one open to pain.
    Elizabeth Bowen (1899–1973)

    Unaware of the absurdity of it, we introduce our own petty household rules into the economy of the universe for which the life of generations, peoples, of entire planets, has no importance in relation to the general development.
    Alexander Herzen (1812–1870)

    Our father has an even more important function than modeling manhood for us. He is also the authority to let us relax the requirements of the masculine model: if our father accepts us, then that declares us masculine enough to join the company of men. We, in effect, have our diploma in masculinity and can go on to develop other skills.
    Frank Pittman (20th century)