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[Octave-bug-tracker] [bug #61310] Please document fsolve "info" output -
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From: |
Arun Giridhar |
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Subject: |
[Octave-bug-tracker] [bug #61310] Please document fsolve "info" output -2 |
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Date: |
Fri, 8 Oct 2021 19:07:21 -0400 (EDT) |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:93.0) Gecko/20100101 Firefox/93.0 |
Follow-up Comment #1, bug #61310 (project octave):
Searching for "info = " with grep on fsolve.m indicates the other values of
info are indeed documented, so info = -2 may have been simply overlooked in
the docs. The part with info = -2 pertains to the Jacobian becoming small and
the search stalling; the Jacobian norm can be computed with or without QR
decomposition.
A doc patch is here. Please review and edit as needed:
diff -r a2936935c7c8 scripts/optimization/fsolve.m
--- a/scripts/optimization/fsolve.m Thu Oct 07 17:08:44 2021 -0400
+++ b/scripts/optimization/fsolve.m Fri Oct 08 19:04:47 2021 -0400
@@ -107,6 +107,10 @@
## @item -1
## Stopped by @code{OutputFcn}.
##
+## @item -2
+## The Jacobian became excessively small and the search stalled.
+## @end table
+
## @item -3
## The trust region radius became excessively small.
## @end table
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