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[gnuastro-devel] [bug #56299] cosmiccal fails at z=0

From: Leindert Boogaard
Subject: [gnuastro-devel] [bug #56299] cosmiccal fails at z=0
Date: Fri, 10 May 2019 09:12:50 -0400 (EDT)
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1 Safari/605.1.15


                 Summary: cosmiccal fails at z=0
                 Project: GNU Astronomy Utilities
            Submitted by: laboogaard
            Submitted on: Fri 10 May 2019 01:12:47 PM UTC
                Category: CosmicCalculator
                Severity: 3 - Normal
              Item Group: Crash
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any



astcosmiccal reports a numerical error when trying to compute parameters at

$ astcosmiccal -z0
gsl: qng.c:189: ERROR: failed to reach tolerance with highest-order rule
Default GSL error handler invoked.
Abort trap: 6

This was tested with version 0.9.

A potential workaround is to catch 0 and compute at a very small number
(1e-10) instead?


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