GNU Scientific Library - Bugs: bug #59911, Problem with qagui 1D integrator
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bug #59911: Problem with qagui 1D integrator
Submitter: | Patrick Alken <psa> | ||
Submitted: | Wed 20 Jan 2021 02:36:50 AM UTC | ||
Category: | None | Severity: | 3 - Normal |
Operating System: | Status: | None | |
Assigned to: | None | Open/Closed: | Open |
Release: |
Wed 10 Mar 2021 08:02:06 PM UTC, comment #1: |
Yaroslav Nikitenko <ynikitenko> |
Wed 20 Jan 2021 02:36:50 AM UTC, original submission:
from takacs =dot= adam =at= wigner =dot= mta =dot= hu
|
Patrick Alken <psa>![]() |
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cosh(x) dx is d(sh x). If you name that variable u, you have an integral of exp(-sqrt(1+u^2)). This function seems to better behave at infinity, it doesn't have accuracy errors because as the previous product of a very large and very small function.