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[Octave-bug-tracker] [bug #55354] incorrect result on complex step appro
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From: |
Doug Stewart |
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Subject: |
[Octave-bug-tracker] [bug #55354] incorrect result on complex step approximation example by prof. Higham |
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Date: |
Tue, 1 Jan 2019 14:06:05 -0500 (EST) |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36 |
Follow-up Comment #1, bug #55354 (project octave):
I ran your code and did NOt get your answer!
I am on octave 4.4.1
OctSymPy v2.6.0: this is free software without warranty, see source.
Initializing communication with SymPy using a popen2() pipe.
Some output from the Python subprocess (pid 29328) might appear next.
Python 2.7.15rc1 (default, Nov 12 2018, 14:31:15)
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> >>>
OctSymPy: Communication established. SymPy v1.0.
f = (sym)
atan(x)
────────
2
-x
1 + ℯ
fd = 2.746237281548576e-01
fd_cs = 2.746237281548576e-01
fd_fd1 = 2.500000000000000e-01
fd_fd2 = 2.746237292885780e-01
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