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visits member for 3 years, 11 months
seen Jun 24 '13 at 0:06

No, his mind is not for rent
to any god or government.
Always hopeful, yet discontent.
He knows changes aren't permanent,
but change is.

— Rush, Tom Sawyer


Taking an externally-imposed and much-needed break from SE activities.

E-mail (flipped ROT13): zqd˙ʎʌuzʇ@ʇɐʌǝɥʇʌssqɹǝɥɟuɹʎɔ
Any code I've posted here I place under the WTFPL.


Oct
3
comment Link between time and complex amplitude argument, DFT
Why not ask your teacher? There's a lot you can do (e.g. spectrograms), and it's not entirely clear what you (or your teacher, as it seems) are expecting to see from what you've written.
Oct
3
comment For all w, CDF of y at w is greater than the CDF of x at w. Prove that the probability ( y < x ) >= 0.5
What distribution are we talking about here?
Oct
3
comment Problem with binomial coefficients
It's a bit of a cheat, but $\binom{m}{n}$ for $m < n$ is 0 because the reciprocal gamma function (and thus the reciprocal factorial) is zero at the negative integers.
Oct
3
revised Integral solutions to $y^{2}=x^{3}-1$
edited tags
Oct
3
comment geometry and topology
"geometric topology has some characteristics of a grumpy old man who is really set on figuring out something specific." - Awesome, now I won't be able to get that image out of my head. Thanks! ;)
Oct
3
comment Finding a line that satisfies three conditions
Wow, the box product makes everything tidy! :D
Oct
2
revised Implicit function $y = e^{(y-1)/x}$
correction
Oct
2
comment The WKB method: motivation
Short version: because the Airy function is the simplest function with a "turning point" that is "well-studied" enough, that we look at how we can (locally) approximate solutions to more complicated differential equations with Airy.
Oct
2
revised Implicit function $y = e^{(y-1)/x}$
additions
Oct
2
comment Finding a line that satisfies three conditions
In English: find the line parallel to $\mathbb{L}_1$ that crosses the other two given lines.
Oct
2
revised Finding a line that satisfies three conditions
edited tags
Oct
2
comment Extension of previous problem, involving $\ell^p$ norm circles
If I'm understanding what you want to do correctly, why can't you just subtract the total area of one Lamé curve from another?
Oct
2
comment Explanation of method for showing that 0 / 0 is undefined
@Talvi: commutativity is a property of operators (e.g. addition, multiplication), not of objects like ∞.
Oct
2
revised How is done the calculation of the minimum number of movement to solve any configuration of Rubik's Cube?
edited tags
Oct
2
revised Intersection of Cubic curves
edited tags
Oct
2
answered Implicit function $y = e^{(y-1)/x}$
Oct
1
revised Some basic questions about the Selberg zeta function
Selberg is not yet in Abel's league, per Mariano. ;)
Oct
1
comment How do I plot this red dot?
But you have an algorithm... that would give information that can be just as valuable as (if not more so) the series of pictures you have.
Oct
1
comment Does the following function have a name and what properties does it have?
What you're asking for in (1) looks like a flipped ramp function. I don't think this is what you really want, though.
Oct
1
revised How many disconnected graphs of the Rubik's cube exist?
"Rubik" is a proper noun.