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answered 2012-06-08 04:32:02 +0100
var("s t") def f(t,n): return integral(sqrt(s/n)*1/sqrt(2*pi)*exp(-s*t^2/(2*n))*exp(-s/2)*s^(n/2-1)/(gamma(n/2)*2^(n/2)),s,0,infinity) print [f(t,k) for k in range(1,10)]