[Jprogramming] J v Python

[Boyko Bantchev]

On 10 December 2012 08:19, Bo Jacoby <bojacoby at yahoo.dk> wrote:
> Boyko, congratulations! You manage to convince yourself that  cm²  is not an expression even if  mc²  is an expression. I don't follow.  3m*2m=6m². That is simple algebra where  m*m=m² . Nor do I know what you mean by 'pushing their meaning too far.'

I know 'mc²' is an expression because it is present in a well-known
formula.  Without that knowledge, I wouldn't know what it is at all.
I also know 'cm²' is a symbol – a label denoting some unit of measure.
Nothing in this label requires reading it as expression.

I cannot believe that you are serious about not making difference
between an expression and a label (or a name, if you prefer).