My undergraduate degree was in Mathematics (University of Dallas, 1971). My core interest is General Systems Theory. My career was mostly in computer programming, however, I also taught English, and high-school mathematics, in China for 9 years. I am currently semi-retired, drawing social security, and working on my various websites. As far as I am concerned, anything I do here is in the Public Domain.

Student Exercise Tasks (for Mathematics, Language Arts, etc.) - autocorrected

Index to Stewart's Calculus (4th ed.)

1d
comment Determine the number of integer solutions for $x_1+x_2+x_3+x_4+x_5 < 40$
What happened to the displays?
Feb
5
comment Country ranking by combination of factors
"The Age of Nations is past. The task before us now, if we would not perish, is to build the Earth." -- Teilhard de Chardin
Feb
3
comment What do you suggest I do to prepare? Thanks In advance!
Here is yet another link that might be helpful: math.stackexchange.com/questions/1077757/…
Feb
3
comment What do you suggest I do to prepare? Thanks In advance!
Here is yet another link that might be helpful: math.stackexchange.com/questions/63504/…
Feb
3
comment What do you suggest I do to prepare? Thanks In advance!
Here is yet another link that might be helpful: math.stackexchange.com/questions/913416/…
Feb
3
comment What do you suggest I do to prepare? Thanks In advance!
Here is yet another link that might be helpful: math.stackexchange.com/questions/456430/…
Feb
3
comment What do you suggest I do to prepare? Thanks In advance!
This link might also be of some help: math.stackexchange.com/questions/51941/i-want-to-learn-math
Feb
3
comment What do you suggest I do to prepare? Thanks In advance!
“avoid formalism and axiomatics” - You sound like Vladimir Arnold:)
Feb
3
comment What do you suggest I do to prepare? Thanks In advance!
I have created some online student exercise tasks, many of which concern mathematics. The tasks are freely accessible, with no sign-in required, and are ad-free. Here is the address: public-domain-materials.com/…
Jan
28
revised Math Textbooks for High School
added reference to Stewart's Calculus
Jan
27
answered Math Textbooks for High School
Jan
26
revised If squaring a number means multiplying that number with itself then shouldn't taking square root of a number mean to divide a number by itself?
added examples of interest formulas and use of the Trapezoidal Rule
Jan
20
comment What does it mean to solve an equation?
“heavy” is given this additional meaning. In a similar way, “exact” is overloaded with the meaning of “in usably precise form”, which an abstract expression such as the square root of 2 is not.
Jan
20
comment What does it mean to solve an equation?
@GyroGearloose: Of course it’s no joke (in the sense that it really happened), but of course it is amusing, but the amusement arises from the difference in language (phraseology) used in different domains. There is a strong gravitational pull, so to speak, towards ordinary language away from technical language, but ordinary language has to overload its terms so as to cover all the nuances of technical language. For example, a pound of bricks is arguably heavier than a pound of feathers, because the term “dense”, in the physical sense, does not exist in ordinary language, and so the term
Jan
15
revised pencil-sharpening (procrastination) link wanted
added Dorothy Sayers' search and results
Jan
15
comment pencil-sharpening (procrastination) link wanted
@ab2: My guess is that it was indeed Dorothy Sayers. Thanks for the tip.
Jan
14
revised pencil-sharpening (procrastination) link wanted
added reference to novelist
Jan
14
answered Sabotaging through purposeful procrastination
Jan
14
comment If squaring a number means multiplying that number with itself then shouldn't taking square root of a number mean to divide a number by itself?
@Fermi paradox: If someone wants friendly atmosphere, a much better option is to visit their local Esperanto club.
Jan
13
asked pencil-sharpening (procrastination) link wanted
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