stukselbax
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 Dec 6 awarded Tumbleweed Nov 14 awarded Promoter Oct 19 comment Bounds on the real and imaginary parts of the digamma function $\psi$ Probably Euler constant $\gamma$ should be taken into consideration for $Re \Psi (z)$ Sep 24 awarded Autobiographer Apr 16 comment How to find fitting parameters of the function? I have used the limits for parameters in search operation. Now I will try to change starting point. Apr 16 asked How to find fitting parameters of the function? Apr 16 accepted Compute integral $\int_{0}^{1} t^{i\eta}(1-tz)^{-2} \, \mathrm{d}t$ analytically Mar 23 accepted Paradox with function representation Mar 23 comment Paradox with function representation The Nobel Prize has just slipped away from me. Thanks for explanation. Mar 23 asked Paradox with function representation Jan 11 asked Compute integral $\int_{0}^{1} t^{i\eta}(1-tz)^{-2} \, \mathrm{d}t$ analytically May 15 comment What representation should I choose for numerical computation of hypergeometric function ${}_2 F_1(1+i\eta, 2; 2+i\eta; x)$ where $|x|=1$ Thanks a lot. I use exactly this integral to compute hypergeometric function. I compute it using Simpson method, and all works for me. My problem was in computation of Gamma functions which have to stand before the integral - but you have reduce the fraction and simplified my task! May 15 awarded Scholar May 15 accepted What representation should I choose for numerical computation of hypergeometric function ${}_2 F_1(1+i\eta, 2; 2+i\eta; x)$ where $|x|=1$ May 14 awarded Supporter May 14 comment What representation should I choose for numerical computation of hypergeometric function ${}_2 F_1(1+i\eta, 2; 2+i\eta; x)$ where $|x|=1$ @J.M. You say that direct numerical solving of hypergeometric equation hard task, isn't it? May 14 comment What representation should I choose for numerical computation of hypergeometric function ${}_2 F_1(1+i\eta, 2; 2+i\eta; x)$ where $|x|=1$ @J.M. no, they are real(if you speak about $\eta, \beta, k, mu$). this is from physics - it is some kind of differential cross section for Helium. or similar. May 14 awarded Student May 14 asked What representation should I choose for numerical computation of hypergeometric function ${}_2 F_1(1+i\eta, 2; 2+i\eta; x)$ where $|x|=1$