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# scipy.special.gdtr

`scipy.special.``gdtr`(x1, x2, x3[, out]) = <ufunc 'gdtr'>

  y=gdtr(a,b,x) returns the integral from zero to x of the gamma probability density function: a**b / gamma(b) * integral(t**(b-1) exp(-at),t=0..x). The arguments a and b are used differently here than in other definitions.

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