emanuele
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 Apr10 comment Has this infinite sum $\sum _{i=1}^{\infty } p^i \log (b i+a)$ any known solution? which version of mathematica you have? Apr10 accepted Has this infinite sum $\sum _{i=1}^{\infty } p^i \log (b i+a)$ any known solution? Apr10 comment Has this infinite sum $\sum _{i=1}^{\infty } p^i \log (b i+a)$ any known solution? wolfram show the partial derivative too on the lerch function. you should change your answer. Apr10 comment Has this infinite sum $\sum _{i=1}^{\infty } p^i \log (b i+a)$ any known solution? Thanx Olivier. Has $$\partial_s \Phi (p,s,1+\frac{a}{b})$$ any aproximate form? Apr10 revised Has this infinite sum $\sum _{i=1}^{\infty } p^i \log (b i+a)$ any known solution? added 40 characters in body Apr10 asked Has this infinite sum $\sum _{i=1}^{\infty } p^i \log (b i+a)$ any known solution? Dec19 asked Supply and demand law from game theory Jul2 awarded Curious Feb11 awarded Tumbleweed Feb7 awarded Critic Jan3 accepted Find $k$ such that the vector with $w_n=1/(1+a_n k)$ is orthogonal to a given vector Jan3 comment Find $k$ such that the vector with $w_n=1/(1+a_n k)$ is orthogonal to a given vector Actually, I have no trouble with numerical solution, but I would had bet on the existence of an analytic one. Anyway thanx for the answer. Jan2 comment Find $k$ such that the vector with $w_n=1/(1+a_n k)$ is orthogonal to a given vector So the answer is, "Sorry no analytical solution" ? Jan2 comment Find $k$ such that the vector with $w_n=1/(1+a_n k)$ is orthogonal to a given vector Sorry? This is simply what I have stated in the question. Anyway I am looking for an analytical solution for k. Jan2 asked Find $k$ such that the vector with $w_n=1/(1+a_n k)$ is orthogonal to a given vector Jan19 comment The probability to have same hole cards on two tables of TH poker. ...so, in 100 hands, if i found for example 5 of that same hole cards on average, means that the number generator does not work properly? Jan19 accepted The probability to have same hole cards on two tables of TH poker. Jan19 revised The probability to have same hole cards on two tables of TH poker. added 6 characters in body Jan19 comment The probability to have same hole cards on two tables of TH poker. no, you wrong. I am talking about the cards that belongs to tha same class. So rougly 2/(13*13) because the order doesn't matter. Jan19 revised The probability to have same hole cards on two tables of TH poker. deleted 6 characters in body