
Asymptotic expansion of Erfi (x) - Mathematics Stack Exchange
Jul 26, 2018 · I know you are saying that i i is negligible compared to erfi (x x), but how can erfi (x x) have an imaginary part for real x x?
Why am I getting "Erfi" for the Integral of E^x^2? [closed]
Jan 20, 2019 · Henrick: After reading your comments, we went back and looked at the original problem statement and, indeed, you were right: we needed to find the integral of "x * E^x^2". It …
numerical methods - Evaluating The Imaginary Error Function (erfi ...
Aug 11, 2016 · erfi(x) = 2 π−−√ ex2D(x) e r f i (x) = 2 π e x 2 D (x) Where D D is the Dawson Function. This is entirely real valued! Also the scipy implementation gives me a real value too. …
Error complex function ERFI(X): looking for alternative function ...
Nov 24, 2021 · I have some analytical results from a physics problem, where the Mathematica gives the results in terms of complex error function. I would like to explore another ...
Rigorous description of the asymptotics for …
Mar 4, 2022 · Here, the hypergeometric function converges nowhere and should be understood as a formal description of a divergent asymptotic series. I am looking for a rigorous derivation …
Inverse of Imaginary Error Function - Mathematics Stack Exchange
Aug 17, 2017 · $$ \text {erfi}^ {-1} (x) = -i \, \text {erf}^ {-1} (i x) $$ You can show this by considering the definition of the imaginary inverse function $$ \text {erfi} (x) = -i\,\text {erf} (i x) …
simplifying expressions - Mathematica Stack Exchange
Sep 11, 2020 · FresnelC[z] Erfi[z] Erfi[z]} Such identities can be found exploiting MathematicalFunctionData and MathematicalFunction (the latter new in version 12), …
An complicated integral involving Erfi function
Feb 13, 2022 · An complicated integral involving Erfi function Ask Question Asked 3 years, 7 months ago Modified 3 years, 7 months ago
Showing $\\int e^{x^2} dx = \\frac12 \\sqrt\\pi …
Showing $\int e^ {x^2} dx = \frac12 \sqrt\pi \operatorname {erfi} (x) + C$ I have seen this identity, but how is it reached? What parts of it make sense and what part is just made into erf?
Expansion of Confluent Hypergeometric Function in terms of ...
Mar 13, 2021 · Expansion of Confluent Hypergeometric Function in terms of $\operatorname {erfi} (x)$ Ask Question Asked 4 years, 8 months ago Modified 4 years, 8 months ago