Re: How can I tell if F is a string or if it is a number?

On Apr 5, 5:52 pm, Chris Smith <cdsm...@xxxxxxx> wrote:

This isn't making any sense.  Can you express more clearly what you are
looking for?

Yes, I don't understand the concepts to ask it clearly. Sorry about
that. Maybe I can explain geometrically?

If AB is a line, I think that AB = F = ma. In this case, there is just
one quantity, ma, and AB and F are two names for it.

But according to physics convention, there are two lines, say, CD = F
and GH = ma. So, F is not merely a label but a line itself.

Also, if I want to create this same formula in a spread*** I would
have three columns with names, mass, acceleration and force. The
contents of the columns will be the value of mass, m, the value of
acceleration, a, and the third column will be m*a.

So the content of the cells, where you can only put quantities, do not
contain a term for force. Then force is not a quantity but just a
label for m*a. If I put "force" in the third column I would get an
error message where a number would be expected.

Does this makes sense? Reading other responses I see that both
mathematics and programming may be useless in trying to decide such a
question. Thanks again for the help.
.

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