pharmine

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Systems biologist.


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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
Oct
2
 answered A plane Geometry Problem
Oct
1
 comment fractional linear transformations
@Zarrax I see. +1 for your nice argument.
Sep
30
 awarded  Commentator
Sep
30
 comment fractional linear transformations
Nice argument, but I think it is not immediately clear whether the transformation takes the unit circle to "the whole of" the unit circle.
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