debian-u...@howorth.org.uk wrote: 
> Nicolas George <geo...@nsup.org> wrote:
> > The issue is not what you CAN express with different media: any
> > program can be expressed as a flowchart.
> 
> Is that true? Genuine question - I don't know the answer. But are the
> two mathematically equal/equivalent? I wonder how, for example,
> self-modifying code or tail recursion are modelled in flowcharts?

Since flowcharts are interpreted by humans and not computers,
you could always define a new construct.

That said:

https://www.freecodecamp.org/news/how-recursion-works-explained-with-flowcharts-and-a-video-de61f40cb7f9/

Self-modifying code is just an implementation where a step
breaks out into "run the code contained in this variable".

-dsr-

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