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idempotent (was Re: exif --remove not idempotent, and a Debian man page bug)



On Saturday, September 24, 2022 09:17:31 AM hede wrote:

> "Idempotent" means, that a task with the same input data and the same

> config (for example to remove a tag via exif-tool) results in the same

> output data. Is this the case here?

 

That is not my understanding of itempotent (nor of Wikipedia). A succinct quote from another source:

 

<quote>

An operation that produces the same results no matter how many times it is performed.

</quote>

 

Some examples from (simple) math include adding zero or multiplying by 1. An example from "real life" could be pressing the on (or off) button on some electronic device.

 

--

rhk

 

If you reply: snip, snip, and snip again; leave attributions; avoid HTML; avoid top posting; and keep it "on list". (Oxford comma included at no charge.) If you change topics, change the Subject: line.

 

Writing is often meant for others to read and understand (legal agreements excepted?) -- make it easier for your reader by various means, including liberal use of whitespace and minimal use of (obscure?) jargon, abbreviations, acronyms, and references.

 

If someone else has already responded to a question, decide whether any response you add will be helpful or not ...

 

A picture is worth a thousand words -- divide by 10 for each minute of video (or audio) or create a transcript and edit it to 10% of the original.

 


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