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½ð³æ (СÓÐÃûÆø)

[ÇóÖú] matlab Warning: Explicit integral could not be found.

>>  clear;syms x;int(x^(-1.3)/(1+exp(x+1.31)),0,inf)
Warning: Explicit integral could not be found.
> In sym.int at 64

ans =

int(1/(x^(13/10)*(exp(x + 131/100) + 1)), x = 0..Inf)


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