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visits member for 1 year, 10 months
seen Aug 19 at 23:41

Currently a Software Engineer at YouTube/Google.

I was a student at UC Berkeley studying Engineering, Mathematics, & Statistics.


Aug
15
awarded  Critic
Apr
8
revised a fair coin is thrown ten times. find the probability that more heads than tails arise?
added 440 characters in body
Apr
8
awarded  Yearling
Apr
8
comment a fair coin is thrown ten times. find the probability that more heads than tails arise?
Nope. You need to use binomial distribution.
Apr
8
answered a fair coin is thrown ten times. find the probability that more heads than tails arise?
Apr
8
answered How to solve complex number
Apr
7
awarded  Commentator
Apr
7
comment Why does $E[X]$ not equal the integral of $f(x)^2$
Right, the E(f(x)) = integral of f(x)^2
Apr
7
answered Minimizing Height of a Table
May
9
comment Need help understanding statement of Van Kampen's Theorem and using it to compute the fundamental group of Projective Plane
Ah, I see. It's incorrect to say that by inclusion I get $a^2 = 1$ in $\pi_1(U)$; that equality is only true in $\pi_1({\bf RP^2})$ because in that case the loop $a^2$ can be homotoped to the trivial loop. Thanks for your response.
May
9
awarded  Scholar
May
9
accepted Need help understanding statement of Van Kampen's Theorem and using it to compute the fundamental group of Projective Plane
May
9
asked Need help understanding statement of Van Kampen's Theorem and using it to compute the fundamental group of Projective Plane
Nov
16
awarded  Enthusiast
Nov
11
revised Crofton's formula for regular curves
added 15 characters in body
Nov
11
revised Crofton's formula for regular curves
deleted 1 characters in body
Nov
11
answered Crofton's formula for regular curves
Nov
6
awarded  Student
Nov
5
comment Minimal surfaces and gaussian and normal curvaturess
This is not correct. $x_{12} \cdot n$ is not $0$. Result is still correct since $F=0$, however.
Nov
2
comment Prove that $X$ parametrizes a regular surface $M$ in $\mathbb{R}^3$ and determine for which values $p$ the curve $y$ is geodesic on $M$.
You should not set $<X_t,y \prime\prime>$ and $<X_p,y \prime\prime>$ equal to $0$. A geodesic is defined by $<S,y \prime\prime>=0$ where $S$ is the intrinsic normal vector. In other words, if $T$ is the tangent for the curve $y$, and $n$ is the normal vector to the surface, then $S = n\times T$. You should probably figure out $T$. You already found $n$. Then just calculate $S$ and solve for $p$ in $<S,y \prime\prime>=0$