735 reputation
111
bio website
location Maryland, United States
age 46
visits member for 1 year, 8 months
seen Jan 22 at 20:50

Scientist turned systems engineer by day, I enjoy recreational math, esp. mental approximations and properties related to the prime factorization of a number (e.g., # of divisors, powerful numbers, smooth numbers). I'm also interested when half-integers share a property of integers, such as Pronic numbers, which are essentially the squares of half-integers. For something else intriguing, check out the Sacks number spiral.


Dec
13
answered $x$ values for $2x + |x| = 3 + |x+1|$
Dec
10
answered Values of a, b, and c that the curve $y = ax^3 + 3x^2 + bx + cx + e^x$ has one point of inflection?
Dec
4
answered Does every record of the arithmetic derivative of natural numbers occur at a practical number?
Dec
2
answered Positively non-positive (from Brilliant.org) Whats wrong with my method?
Nov
28
answered Trigonometry triangles
Nov
28
answered Continued fraction explanation
Nov
28
answered Lower bound for logarithm?
Nov
26
asked Can we determine which statements are incomplete due to Godel?
Nov
26
answered When proving a statement by induction, how do we know which case is the valid 'base'?
Nov
24
answered Probability - rolling two dices and flipping one coin two times
Nov
24
answered Differential Equations and Newtons method
Nov
24
answered Derivative word problem - $s''(t) = a$, i.e the acceleration is constant and $(1) [s'(t)]^2 = 2as(t)$
Nov
24
answered Proving for every odd number $x$, $x^2$ is always congruent to $1$ or $9$ modulo $24$
Nov
22
answered Limit of $\left(1-\frac{1}{n^2}\right)^n$
Nov
18
answered Proving $n^3$ is even iff $n$ is even
Nov
15
answered D.w. $p_i>\sigma(p_1^{a_1}p_2^{a_2}…p_{i-1}^{a_{i-1}})\forall i \in [1,\omega(n)]\iff d_j>d_1+d_2+…+d_{j-1} \forall j \in [1,\sigma_0(n)]$
Mar
22
answered What is the probability you guess the number I am thinking of?
Mar
21
answered What are some ways to find the minimum of an expression?
Mar
21
answered compute minimum distance between point and great arc on sphere
Feb
20
answered Root of a polynomial with rational coefficients