## Search found 13 matches

- Thu Feb 20, 2014 12:37 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 1332: "Slippery Slope"
- Replies:
**119** - Views:
**22848**

### Re: 1332: "Slippery Slope"

"I know it is wrong to murder innocent children, but let's not go too far in the opposite direction."

- Tue Aug 14, 2012 1:50 am UTC
- Forum: Mathematics
- Topic: Solving for a summation limit
- Replies:
**6** - Views:
**1396**

### Re: Solving for a summation limit

I'm a bit hungry and tired right now, so i might be pulling your legs here. Anyway, if you let d = 1/exp(c) you get: \log\left(\frac{(b - a)^N}{\prod_{k=1}^N(b + k)}\right) = -\log d \Rightarrow \log\left(\frac{(b - a)^N}{\prod_{k=1}^N(b + k)}\right) +...

- Sat May 19, 2012 10:46 am UTC
- Forum: Mathematics
- Topic: Preparation for Real Analysis
- Replies:
**8** - Views:
**3414**

### Re: Preparation for Real Analysis

Understanding Analysis by Stephen Abbot is a very good book for self studies and the toc is suspiciously close to your course description.

A good textbook in combination with wikipedia and http://math.stackexchange.com will probably do the trick.

A good textbook in combination with wikipedia and http://math.stackexchange.com will probably do the trick.

- Sun Apr 08, 2012 5:14 pm UTC
- Forum: Mathematics
- Topic: Favorite math jokes
- Replies:
**1452** - Views:
**494218**

### Re: Favorite math jokes

Didn't see this one when i browsed through this thread:

Edit: Hint: It's from the block buster movie yet to be done, Fourier Transformers.

Edit: Hint: It's from the block buster movie yet to be done, Fourier Transformers.

- Fri Apr 06, 2012 11:16 am UTC
- Forum: Mathematics
- Topic: Favorite number sequences?
- Replies:
**24** - Views:
**4407**

### Re: Favorite number sequences?

My favorite sequence in the sense that it is the one I use the most is clearly the sequence of natural numbers (a_0 = 0, a_n = a_(n-1)+1). It is very useful for example counting things and it is easy to remember. On the less trivial side of things I like sequences with a nice geometrical interpretat...

- Tue Apr 03, 2012 9:58 am UTC
- Forum: Comics/Graphic Novels
- Topic: Would you kindly share your webcomic reading list?
- Replies:
**377** - Views:
**161833**

### Re: Would you kindly share your webcomic reading list?

One of my favorites right now is Rock Manlyfist (http://www.rockmanlyfist.com/). A sunday page style, a bit over the top, action adventure that has featured things like genetically engineered ninjas, mysterious land dwelling sharks and a giant robot among other things.

- Tue Apr 03, 2012 9:18 am UTC
- Forum: Mathematics
- Topic: Mean of infinite sets
- Replies:
**10** - Views:
**2688**

### Re: Mean of infinite sets

Yes and No. The mean of a finite S set is m_S = \frac{\sum_{s\in S} s}{\sum_{s\in S} 1} . You can see that the denominator equals the number of elements in S. Let S_N = {-N,...,N} and let N tend to infinity. The nominator is zero and the denominator tends to infinity. All is fine. But if you decide ...

- Tue Apr 03, 2012 8:20 am UTC
- Forum: Religious Wars
- Topic: Admit it. Your first OS is your favorite.
- Replies:
**81** - Views:
**50450**

### Re: Admit it. Your first OS is your favorite.

My first OS was win 3.11 and the first one I actually installed was DOS 6.<something>. By then windows xp was already out but i've found an old 486 in the basement wich I experimented with. Back in the days I was a huge windows fanboy but when I got my first own real computer, it took about three we...

- Fri Mar 23, 2012 9:31 am UTC
- Forum: Mathematics
- Topic: A metric for mathematicians
- Replies:
**9** - Views:
**2604**

### Re: A metric for mathematicians

I've played in the same band as a guy with Erdös number 2. This means that d_{B \cup M}(\text{Me},\text{Erdös}) \leq 3 where d_A is the graph metric of graph A , M is the math article collaboration graph and B is the band collaboration graph. Since I'm pretty sure he hasn't played in a band ...

- Fri Dec 17, 2010 2:05 pm UTC
- Forum: Individual XKCD Comic Threads
- Topic: 0835: "Tree"
- Replies:
**126** - Views:
**30144**

### Re: 0835: "Tree"

I bet this strip is going up on the message boards in more than one computer science department.

- Sat Oct 30, 2010 11:59 am UTC
- Forum: Mathematics
- Topic: knapsack-like problem
- Replies:
**5** - Views:
**1265**

### Re: knapsack-like problem

I don't know if I understand you correctly but you could probably use the integer property of the problem and relax it to a ordinary LP problem and solve it with simplex. Your problem can then be rewritten as \min_x c^T x -T \text{s.t } c^T x \geq T 0 \leq x_i \leq 1 Dynamical programming is also an...

- Fri Oct 29, 2010 9:55 am UTC
- Forum: Mathematics
- Topic: Yo momma's so nerdy...
- Replies:
**40** - Views:
**7255**

### Re: Yo momma's so nerdy...

Yo momma's only she and n other passengers could fit in the bus on the trip to Hilberts hotel.

- Mon Nov 30, 2009 7:46 pm UTC
- Forum: Mathematics
- Topic: Numerical Laplace Transform
- Replies:
**5** - Views:
**2438**

### Re: Numerical Laplace Transform

To understand the Laplace transform you can view it as a Fourier transform with a convergence factor e^{-\sigma t} ( s = \sigma + i\omega ). If you really want to view the Laplace transform of a function use fft in your numerical analysis software of choice on f(t)e^{-\sigma t} and plot it w...