Q: "...Learning with Python" ...a property that addition and multiplication have...

[jeffbernstein at yahoo.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?

Thanks,

Jeff