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Oct
20
answered Why do people use “it is easy to prove”?
Oct
20
answered Are there any common practices in mathematics to guard against mistakes?
Oct
20
comment How does learning math affect other skills?
I am annoyed by your question. Could that mean that choosing user names starting with A makes people more annoying? I suggest that you learn about gender role history before you claim that "women have traditionally be deemed more fluid with words" and that this is supported by Psychology. It might also be somewhat relevant that the placebe control group of men thinking they got an estrogen contraception pill complained about the "side effects" of being more emotional, etc.
Oct
20
comment A Case Against the “Math Gene”
If the ability to do math were determined at birth, then no math education would be necessary. This critique is not mere quibbling over formulation, the ill-posed question is at the heart of the problem of "nature versus nurture". I have answered the implied question on the problem of attitude of teachers and students below.
Oct
20
answered A Case Against the “Math Gene”
Oct
20
comment How can I learn to “read maths” at a University level?
You can just stereo-look at the two drawings and the differences will jump out into the third dimension.
Oct
19
answered How to prove $e$ isn't a $\frac {a}{b}$. Not irrationality with other ways or about transcendental, only about fractions
Oct
19
comment How to prove $e$ isn't a $\frac {a}{b}$. Not irrationality with other ways or about transcendental, only about fractions
This is a proof for the irrationality that you are seeking.
Oct
18
comment Recursion with non-equal exponents
What kind of functions on which domain are you looking for? Do you have an example? Are the functions continuous? Or functions on the natural numbers ? Are there initial conditions?`Are you looking for asymptotics?
Oct
18
comment Recursion with non-equal exponents
What is $P_d$ ?
Oct
18
answered Convert Hexadecimal to Binary number
Oct
18
comment Combinatorial interpretation of the Prime Number Theorem?
@r.e.s. Please let it stand here. The answer warns eveyone about the flaw, but it is still an interesting line of reasoning.
Oct
17
revised Two Dirichlet's series related to the Divisor Summatory Function and to the Riemann's zeta-function, $\zeta(s)$
edited tags
Oct
17
comment counting tuples with restricted condition
@ougao Your example now is the coefficient of $q^5$ in $q^4(1-q^5)/(1-q)$ which is the coefficient of $q$ in $1+q+q^2+q^3+q^4$.
Oct
17
revised counting tuples with restricted condition
added 289 characters in body
Oct
16
comment Trapezoid's area
@Bring Calculate the third non-alpha angle and then apply the formula.
Oct
16
comment How is this probability found (project euler #121)?
@narik No, this is $\frac 12 \cdot \frac 13 \cdot \frac 14 \cdot \frac 45$.
Oct
16
revised How is this probability found (project euler #121)?
added link, explained origin more precisely
Oct
16
answered How is this probability found (project euler #121)?
Oct
16
answered Proof of $\sum_{0 \le k \le t} {t-k \choose r}{k \choose s}={t+1 \choose r+s+1}$?