1,278 reputation
1021
bio website
location Berkeley, CA
age 24
visits member for 4 years
seen 21 hours ago

I'm a physics student at the University of California.


May
9
comment Divisibility of 9 and $(n-1)^3 + n^3 + (n+1)^3$
@Theo funny that I had seen weierstrass p-functions without the script p. Is the W-p relevant in this situation (with the polynomial presented by Isaac) or is it just a stylistic variation on his part?
May
8
comment Divisibility of 9 and $(n-1)^3 + n^3 + (n+1)^3$
Never seen a script p like that used as a symbol. Where does it come from?
May
8
comment Is there any mathematical operation on Integers that yields the same result as doing bitwise “AND”?
@Felipe what you have just described is a perfectly valid definition for the function you are looking for...
Apr
11
comment Given a null surface, calculate the manifold it resides in
@joriki this is correct. I'll edit my question to be more clear.
Apr
11
awarded  Organizer
Apr
11
comment What does the math notation $\sum$ mean?
Symbolic computation, while sharing the same first word as your question does not quite relate, retagged to notation.
Apr
11
revised What does the math notation $\sum$ mean?
edited tags
Apr
11
asked Given a null surface, calculate the manifold it resides in
Dec
12
comment Computer Programs for Pure Mathematicians
@Raphael @J.M. of course there are open source alternatives to almost every commercial package. I will edit my question in the morning to add in free alternatives
Dec
12
answered Computer Programs for Pure Mathematicians
Dec
11
comment Why does dust gather in corners?
Maybe there is an effect similiar to Lagrangian points for gravitational fields?
Dec
11
accepted Elliptic Curves and Points at Infinity
Dec
10
comment Elliptic Curves and Points at Infinity
@Adrián this book is at the perfect level. Thank you for the link.
Dec
10
comment Elliptic Curves and Points at Infinity
@xdfm Yes, they are. You can imagine my surprise when I missed thanksgiving week and we jumped infinite fractions to discussing elliptic curves.
Dec
10
comment Elliptic Curves and Points at Infinity
If I'm understanding you correctly, the "infinity" comes when we try to map this point back into k^n, over which the polynomial is defined? In other words, if we homogenize a polynomial (and Z is the added dimension), then all points in the vanishing locus with Z = 0 are points at infinity? In the end, isn't our goal to analyse the polynomial itself (and not the homogenized version)? So it makes sense to "normalize" with respect to Z.
Dec
10
asked Elliptic Curves and Points at Infinity
Dec
8
comment how to read a mathematical paper?
Introduction, Conclusion, pictures/equations, and then the text if it actually is what I need.
Dec
3
comment what is product of delta function with itself?
On a related note, does anyone know what the convolution of two delta functions is? Mathematica is telling me that $\delta(x-x_1)$ convolved with $\delta(x-x_2)$ is $\delta(x- x_1 - x_2)$, somehow doesn't seem believable.
Dec
3
awarded  Talkative
Dec
1
comment $e$ to 50 billion decimal places
It becomes even more incredulous when you realize that you only need 55 digits of pi to draw a circle with the radius of the universe to the accuracy of the radius of a hydrogen atom.