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Re: In favor of teaching "dot notation"
Posted:
Oct 17, 2012 10:17 PM
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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:
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> 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?
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> 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 well-posed: "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?
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> 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>
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