| bio | website | asmeurersympy@wordpress.org |
|---|---|---|
| location | New Mexico | |
| age | ||
| visits | member for | 2 years, 9 months |
| seen | yesterday | |
| stats | profile views | 246 |
I am a graduate student in mathematics at NMSU. I am the lead developer for the SymPy project.
I will gladly license my code snippets under something more permissive than StackExchange's CC-BY-SA if you want. Consider my work here to be public domain.
|
2d |
awarded | Good Answer |
|
May 12 |
comment |
How to represent the floor function using mathematical notation? With the note that the $\max$ is well-defined because the set is bounded from above (by $x$), and every set of integers bounded above has a maximum element by the well-ordering principle. |
|
May 8 |
awarded | Caucus |
|
Apr 26 |
asked | Understanding a proof of Diaconescu's theorem |
|
Apr 26 |
awarded | Nice Answer |
|
Apr 6 |
comment |
Let $A^{27}=A^{64}=I$, show that $A=I$ This is a great way to understand the Euclidean algorithm! |
|
Mar 27 |
answered | All natural numbers are equal. |
|
Mar 26 |
comment |
How to show $(1/n!)^{1/n}$ goes to $0$ as $n$ goes to infinity? I guess it's basically the proof from Ofir's answer. The interesting thing about this one is that you can get it easily just from the definition of $\ln{x}$ as $\int_1^x{\frac{dt}{t}}$. My professor showed us it as part of deriving facts about exponentials and trig functions from the base definitions. The 4 comes from the fact that you can easily show that $\ln(4) > 1$ just from the integral definition of $\ln$ and a simple Riemann sum argument. |
|
Mar 26 |
comment |
How to show $(1/n!)^{1/n}$ goes to $0$ as $n$ goes to infinity? Oh, sorry, I remembered wrong. The bound is $(n/4)^n\geq n!$. It comes from taking $\ln$ of both sides (I can put the proof in an answer if you are interested). |
|
Mar 24 |
comment |
How to show $(1/n!)^{1/n}$ goes to $0$ as $n$ goes to infinity? I believe if you replace $e$ with 2 in the inequality, you can prove this without integration. |
|
Mar 22 |
answered | What was the first bit of mathematics that made you realize that math is beautiful? (For children's book) |
|
Mar 22 |
comment |
What was the first bit of mathematics that made you realize that math is beautiful? (For children's book) Actually, the one that's interesting is the sum of the first $n$ odd integers. |
|
Feb 15 |
awarded | Necromancer |
|
Feb 12 |
comment |
Unusual 5th grade problem, how to solve it Ah, missed that. |
|
Feb 12 |
comment |
The kernel of a continuous linear operator is a closed subspace? Wouldn't your argument about a convergent subsequence just imply that ker L is not compact, not open? |
|
Feb 12 |
comment |
Unusual 5th grade problem, how to solve it I think it's less than $n!$ if you still consider $\frac{1}{2} + \frac{1}{2}$ and $\frac{1}{2} + \frac{1}{2}$ to be the same. |
|
Feb 12 |
comment |
The kernel of a continuous linear operator is a closed subspace? You don't need to assume that $L \neq 0$. If $L = 0$, then it is automatically continuous, and the kernel, the whole space, is closed. |
|
Jan 19 |
awarded | Nice Question |
|
Jan 1 |
awarded | Nice Question |
|
Dec 24 |
comment |
Purely “algebraic” proof of Young's Inequality @AndresCaicedo excellent blog post! |