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:

    “The foregoing generations beheld God and nature face to face; we, through their eyes. Why should not we also enjoy an original relation to the universe? Why should not we have a poetry and philosophy of insight and not of tradition, and a religion by revelation to us, and not the history of theirs?”
    —Ralph Waldo Emerson (1803–1882)

    “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)

    “The whole point of Camp is to dethrone the serious. Camp is playful, anti-serious. More precisely, Camp involves a new, more complex relation to “the serious.” One can be serious about the frivolous, frivolous about the serious.”
    —Susan Sontag (b. 1933)

    “No one, however powerful and successful, can function as an adult if his parents are not satisfied with him.”
    —Frank Pittman (20th century)