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Almost completely off topic.

Started by Jerry Avins December 9, 2005
The only connection with DSP is that many of us here enjoy teaching others.

	A number of 12-year-old girls were beginning to use
	lipstick and would put it on in the school bathroom.
         That was fine, but after they put on their lipstick,
         they would press their lips to the mirror leaving
         dozens of little lip prints. Every night the
         maintenance man would remove them and the next day
         the girls would put them back. Several memos were
         posted about this without effect.

         Finally, the principal called all the girls to the
         bathroom and met them there with the maintenance man.
         She explained that all these lip prints were causing a
         problem for the custodian who had to clean the
         mirrors every night. To demonstrate how difficult it
         was to clean the mirrors, she asked the maintenance
         man to show the girls just how hard it was.

         H took out a long-handled squeegee, dipped it into
         the nearest toilet bowl, and scrubbed at the mirror.

         Since then, there have been no lip prints.

	There are Teachers, and then there are Educators.

Jerry
-- 
Engineering is the art of making what you want from things you can get.
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"Jerry Avins" <jya@ieee.org> wrote in message 
news:GaOdnYC5Z-gsYATeRVn-tQ@rcn.net...
> The only connection with DSP is that many of us here enjoy teaching > others. > > H took out a long-handled squeegee, dipped it into > the nearest toilet bowl, and scrubbed at the mirror. >
It just cracked me up! Thanks Jerry.
Jerry Avins wrote:

> The only connection with DSP is that many of us here enjoy teaching others. > > A number of 12-year-old girls were beginning to use > lipstick and would put it on in the school bathroom. > That was fine, but after they put on their lipstick, > they would press their lips to the mirror leaving > dozens of little lip prints. Every night the > maintenance man would remove them and the next day > the girls would put them back. Several memos were > posted about this without effect. > > Finally, the principal called all the girls to the > bathroom and met them there with the maintenance man. > She explained that all these lip prints were causing a > problem for the custodian who had to clean the > mirrors every night. To demonstrate how difficult it > was to clean the mirrors, she asked the maintenance > man to show the girls just how hard it was. > > H took out a long-handled squeegee, dipped it into > the nearest toilet bowl, and scrubbed at the mirror. > > Since then, there have been no lip prints. > > There are Teachers, and then there are Educators. > > Jerry
Very good. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com
Jerry Avins <jya@ieee.org> writes:
> [...]
Is there something analogous for Jordan Normal Form? -- % Randy Yates % "So now it's getting late, %% Fuquay-Varina, NC % and those who hesitate %%% 919-577-9882 % got no one..." %%%% <yates@ieee.org> % 'Waterfall', *Face The Music*, ELO http://home.earthlink.net/~yatescr
Randy Yates wrote:
> Jerry Avins <jya@ieee.org> writes: > >>[...] > > > Is there something analogous for Jordan Normal Form?
Is that Michael Jordan? His normal form is unlikely to be duplicated for a long time. Jerry -- Engineering is the art of making what you want from things you can get. &#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;&#4294967295;
Jerry Avins wrote:
> Randy Yates wrote: > >> Jerry Avins <jya@ieee.org> writes: >> >>> [...] >> >> Is there something analogous for Jordan Normal Form? > > Is that Michael Jordan? His normal form is unlikely to be duplicated for > a long time. >
As on occasion people are serious on this forum, I Googled ;) From Wikipedia, the free encyclopedia. "In linear algebra, the Jordan normal form, also called the Jordan canonical form, named in honor of the 19th and early 20th century French mathematician Camille Jordan, answers the question, for a given square matrix M over a field K containing the eigenvalues of M, to what extent can M be simplified into a standard shape by changing basis."
Richard Owlett <rowlett@atlascomm.net> writes:

> Jerry Avins wrote: >> Randy Yates wrote: >> >>> Jerry Avins <jya@ieee.org> writes: >>> >>>> [...] >>> >>> Is there something analogous for Jordan Normal Form? >> Is that Michael Jordan? His normal form is unlikely to be duplicated >> for a long time. >> > > As on occasion people are serious on this forum, I Googled ;) > > From Wikipedia, the free encyclopedia. > > "In linear algebra, the Jordan normal form, also called the Jordan > canonical form, named in honor of the 19th and early 20th century > French mathematician Camille Jordan, answers the question, for a given > square matrix M over a field K containing the eigenvalues of M, to > what extent can M be simplified into a standard shape by changing > basis."
Yes, that's the one. I'm taking a graduate math class in Linear Algebra class this semester and the professor spent weeks covering the simple stuff and then blew through JNF in about three days. Meanwhile, about 30 hours of study later, I'm almost getting it (thanks to Carl Meyer's book). -- % Randy Yates % "With time with what you've learned, %% Fuquay-Varina, NC % they'll kiss the ground you walk %%% 919-577-9882 % upon." %%%% <yates@ieee.org> % '21st Century Man', *Time*, ELO http://home.earthlink.net/~yatescr
Randy Yates wrote:
> Richard Owlett <rowlett@atlascomm.net> writes: > > >>Jerry Avins wrote: >> >>>Randy Yates wrote: >>> >>> >>>>Jerry Avins <jya@ieee.org> writes: >>>> >>>> >>>>>[...] >>>> >>>>Is there something analogous for Jordan Normal Form? >>> >>>Is that Michael Jordan? His normal form is unlikely to be duplicated >>>for a long time. >>> >> >>As on occasion people are serious on this forum, I Googled ;) >> >> From Wikipedia, the free encyclopedia. >> >>"In linear algebra, the Jordan normal form, also called the Jordan >>canonical form, named in honor of the 19th and early 20th century >>French mathematician Camille Jordan, answers the question, for a given >>square matrix M over a field K containing the eigenvalues of M, to >>what extent can M be simplified into a standard shape by changing >>basis." > > > Yes, that's the one. > > I'm taking a graduate math class in Linear Algebra class this semester > and the professor spent weeks covering the simple stuff and then blew > through JNF in about three days. Meanwhile, about 30 hours of study > later, I'm almost getting it (thanks to Carl Meyer's book).
Ok, but then it makes me wonder if my humor-impairment is reaching a high-peak today and yesterday... I assumed that there was a humorous implication in bringing this JNF in response to Jerry's post... ??? I figured it must have been because I was not familiar with the Jordan stuff what you were referring to (which I wasn't), but now that you uncovered it, I still don't see a humorous connotation, or even a slight link/association with Jerry's post.... Help me out? Carlos --
On Sat, 10 Dec 2005 10:25:27 -0500, Carlos Moreno
<moreno_at_mochima_dot_com@mailinator.com> wrote:

>Ok, but then it makes me wonder if my humor-impairment is reaching a >high-peak today and yesterday... I assumed that there was a humorous >implication in bringing this JNF in response to Jerry's post... ??? >I figured it must have been because I was not familiar with the Jordan >stuff what you were referring to (which I wasn't), but now that you >uncovered it, I still don't see a humorous connotation, or even a >slight link/association with Jerry's post.... > >Help me out? > >Carlos
I think Randy's just being very subtle. Since the point was about teaching vs educating he's apparently frustrated with how his instructor handled JNF...i.e., perhaps neither taught nor educated. Definitely an inside joke on the first post, still subtle even after the explanation. Eric Jacobsen Minister of Algorithms, Intel Corp. My opinions may not be Intel's opinions. http://www.ericjacobsen.org

Carlos Moreno wrote:

> Ok, but then it makes me wonder if my humor-impairment is reaching a > high-peak today and yesterday... I assumed that there was a humorous > implication in bringing this JNF in response to Jerry's post... ??? > I figured it must have been because I was not familiar with the Jordan > stuff what you were referring to (which I wasn't), but now that you > uncovered it, I still don't see a humorous connotation, or even a > slight link/association with Jerry's post.... > > Help me out?
It's humor through absurdity. Asking how to extend the principle from something so simple to something so complex is absurd. To the American culture, at least, this is found subtly humorous. Such subtlety in humor often does not translate well to other cultures or even to native speakers of another language. Even if you're not in that class it would depend on your prior humor "conditioning." Bob -- "Things should be described as simply as possible, but no simpler." A. Einstein