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

Pioneer1 wrote:
....
No. I neither disagree or agree with Newtonian mechanics. To me,
Newtonian mechanics is a meaningless generalization. I'm questioning
one expression: F=ma. I cannot understand the types of the symbols in
this expression.
....

I think you are making a mistake in even trying to understand one
equation in isolation from the theory of which it is part. The "F" in
"F=ma" carries meaning from static mechanics.

Patricia
.