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visits member for 2 years, 10 months
seen Jul 13 at 16:36

Systems biologist.


Nov
7
asked Calculating the probability that a cord makes a knot
Nov
5
comment How to add cosines with different phases using phasors
$\sqrt{14+8\sqrt{2}}$, not $\sqrt{14+\sqrt2}$
Nov
5
revised From given equality find that $p$ for which equality have at least one positive root
added 4 characters in body
Nov
4
revised From given equality find that $p$ for which equality have at least one positive root
deleted 1 characters in body
Nov
4
revised From given equality find that $p$ for which equality have at least one positive root
added 20 characters in body
Nov
4
answered From given equality find that $p$ for which equality have at least one positive root
Nov
4
comment From given equality find that $p$ for which equality have at least one positive root
(2) has a typo: $\frac{1}{2p}\sqrt{\cdots}$, not $\frac12\sqrt{\cdots}$
Oct
31
awarded  Critic
Oct
20
revised $ f(x+f(x+y))=f(x-y)+f(x)^2 \quad \forall x,y\in \mathbb R$
deleted 7 characters in body
Oct
20
answered $ f(x+f(x+y))=f(x-y)+f(x)^2 \quad \forall x,y\in \mathbb R$
Oct
15
comment Population Dynamics model
"Mathematical demography" may be a useful keyword.
Oct
14
comment Filling out an $n \times n$ square grid with $0$s and $1$s
Have you tried solving the case when $n$ is small, e.g. $n=1,2,3,4,5,\ldots$?
Oct
9
awarded  Revival
Oct
9
awarded  Analytical
Oct
8
revised (Organic) Chemistry for Mathematicians
added 1 characters in body
Oct
8
answered (Organic) Chemistry for Mathematicians
Oct
7
comment For which n are there primitive Pythagorean triples with legs of lengths a and a+n?
The title says "primitive", so $GCD(a,n,c)=1$ is assumed?
Oct
6
comment How to visualize the Gaussian curvature of a 3D surface?
graphics.ucsd.edu/~iman/Curvature
Oct
2
revised A plane Geometry Problem
added 272 characters in body
Oct
2
revised A plane Geometry Problem
added 8 characters in body