"...Learning with Python" ...a property that addition andmultiplication have...

[Terry Reedy]

<jeffbernstein at yahoo.com> wrote in message 
news:1117067025.233387.323910 at z14g2000cwz.googlegroups.com...
> Greetings.
>
> I'm reading "How to think like a computer scientist: Learning with
> Python" and there's a question regarding string operations. The
> question is, "Can you think of a property that addition and
> multiplication have that string concatenation and repetition do not?"
>
> I thought it was the commutative property but "<string>"*3 is
> equivalent to 3*"<string>". Any ideas?

Go back to concatenation instead of repetition.

TJR