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  • 0 posts edited
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  • 19 votes cast
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 $Re \Psi (z)$
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.
Mar
23
comment Paradox with function representation
The Nobel Prize has just slipped away from me. Thanks for explanation.
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
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.