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Apr
3
comment Concrete examples of abstract algebra delivering simple solutions to hard problems
It seems to me that there ought to be a lot more answers to this question.
Apr
2
awarded  Necromancer
Mar
9
comment Why is $1 - \frac{1}{1 - \frac{1}{1 - \ldots}}$ not real?
“how the the imaginary unit, i.e. the square root of −1−1 is involved” - FWIW, remember that, via the closed form formula for the solution of the general cubic equation, non-real numbers may be encountered, even though the roots are real.
Mar
8
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?
comment I'm adding for tracking / lookup purposes: examples of a disconnect between ordinary language and technical language.
Mar
8
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 disconnect comment re gcd
Mar
7
comment In calculus, which questions can the naive ask that the learned cannot answer?
@user4894: Action-at-a-distance doesn’t seem cranky?
Mar
4
comment In calculus, which questions can the naive ask that the learned cannot answer?
Actually, we do know: neither space nor time is a continuum. See the work of Dewey B. Larson for elucidation on this: enciklopedia-vortaro-de-la-merk-angla.weebly.com/…
Mar
3
answered Can squares be replaced by cycloids in the Pythagorean Theorem?
Feb
28
comment Do there exist any visual representations of prime factorizations?
@Charles: Thanks for the laugh!
Feb
17
answered Easy way to compute logarithms without a calculator?
Feb
9
comment Determine the number of integer solutions for $x_1+x_2+x_3+x_4+x_5 < 40$
Cool! I simply didn't know about that feature / technique.
Feb
7
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/…