Like an error, a warning is issued when something unexpected happens. Unlike an error, a warning doesn’t abort the currently running program. A simple example of a warning is when a number is divided by zero. In this case Octave will issue a warning and assign the value Inf to the result.
a = 1/0
-| warning: division by zero
⇒ a = Inf | • Issuing Warnings: |
| • Enabling and Disabling Warnings: |
© 1996–2018 John W. Eaton
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https://octave.org/doc/interpreter/Handling-Warnings.html