
Re: In favor of teaching "dot notation"
Posted:
Oct 17, 2012 10:17 PM



I guess it was the atoms, coffee, coconuts and tractors that threw me off.
http://en.wikipedia.org/wiki/Rational_function
Now tell us what you meant when you said "Then all three of them have much to answer for." :)
Bob Hansen
On Oct 17, 2012, at 8:32 PM, Louis Talman <talmanl@gmail.com> wrote:
> > > On Wed, Oct 17, 2012 at 5:49 PM, Robert Hansen <bob@rsccore.com> wrote: > > How do you handle units? Like 12 miles or 14 hours? > > That's a very good question. How does one handle units in general? What axioms does one use? If there are none, then Robert's earlier question about an exam is wellposed: "Is this mathematics?" > > How do you show a rational function between polynomials, such that a student can see it and simplify it or factor it? > > What on earth is "a rational function between polynomials"? Dare I ask, "Is this mathematics?"? > > Louis A. Talman > Department of Mathematical and Computer Sciences > Metropolitan State College of Denver > > <http://rowdy.mscd.edu/%7Etalmanl>

