## macosxnerd101's Profile User Rating:

Reputation: 11760 Legendary
Group:
Active Posts:
49,045 (18.28 per day)
Joined:
27-December 08
Profile Views:
654,439
Last Active:
24 minutes ago
Currently:
Searching...

### Previous Fields

Country:
Who Cares
OS Preference:
Linux
Favorite Browser:
FireFox
Favorite Processor:
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Favorite Gaming Platform:
Who Cares
Honda
Dream Kudos:
5150
Expert In:
Java, Graph Theory, Combinatorics, Theoretical Computer Science, Economics

### Latest Visitors

macosxnerd101 Please do not PM me with programming help requests.

### Blog entries

#### Macosxnerd101's Blog > Upcoming Tutorials

Posted 10 November 2014

This summer, I began working on a tutorial for the 128-bit AES cryptosystem. I ended up putting it down for quite a few months and am now just getting back to it. I hope to have it done in the next three weeks, pending school work and such. If it doesn't get done by the end of Thanksgiving break, it will get finished over winter break.

After...

#### Macosxnerd101's Blog > Discrete Calculus and Sums of Powers

Posted 03 August 2014

Have you ever wanted to know why \sum_{i=0}^{n} i = n(n+1)/2? The obvious proof is by induction, but it doesn't give us insight as to how we got the formula. I'll show you how to derive these formulas using discrete calculus.

We can actually derive this solution for any sum of powers using discrete calculus. We need a few...

#### Macosxnerd101's Blog > Knowing When to Write Code and Knowing When to Do Math

Posted 31 July 2014

As some of you all may know, this summer I'm working doing summer research related to graph theory and dynamical systems over graphs. In a graph dynamical systems setting, each vertex has a state (such as a binary state) and an update function. The update function looks at the current state of the vertex and its neighbors and produces a new...

#### Macosxnerd101's Blog > Counting Subsets and the Binomial Theorem

Posted 06 July 2013

The Power Set on a finite set S, denoted P(S), has 2|S| elements. Similarly enough, Sum_{i}^{n} C(n, i) = 2n...

#### Macosxnerd101's Blog > The Importance of Multiplicative Functions

Posted 03 July 2013

I came across this thread today, where the OP was attempting to solve a problem regarding counting divisors. Here, the use of a multiplicative function provided means to optimize when counting divisors for larger numbers.

First, let's define two terms- multiplicative and completely multiplicative. A multiplicative function f...

### My Information

Member Title:
Games, Graphs, and Auctions
Age:
23 years old
Birthday:
January 5, 1993
Gender:
Years Programming:
9
Programming Languages:
Java, PHP, Python, SQL

E-mail:
Private
Website URL:
http://

### Friends

Showing 50 random friends of 423  (View all)

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1. #### ishkabible

09 Sep 2015 - 22:23
So are you are stanford for grad school? Cuz that would be super awesome.
2. #### depricated

03 Nov 2014 - 07:24
I've had Summer Nights stuck in my head all morning and I blame you.
3. #### macosxnerd101

09 Jul 2014 - 14:54
The next time I'm in New York, I'm totally going!
4. #### modi123_1

09 Jul 2014 - 11:58
Make sure to plan a weekend trip: http://momath.org/
5. #### da1

17 Jun 2014 - 12:11
Thanks for the help last night.
6. #### macosxnerd101

02 Jun 2014 - 23:27
That's a neat find! Definitely worth knowing about. Thanks for sharing!
7. #### jon.kiparsky

02 Jun 2014 - 23:24
came across this title, thought you might find it worth knowing about: http://www.librarything.com/work/360374
8. #### pbl

22 May 2014 - 13:26
Ya really busy making the books in www.pblinc.ca/majestic
9. #### macosxnerd101

14 May 2014 - 10:31
We looked at polyhedra and vertex configurations in graph theory towards the end. Neat stuff! Thanks for sharing!
10. #### modi123_1

14 May 2014 - 09:35
Fun visualizations of hyperbolic shapes.
"Hexagonal Hyperbolic Honeycombs"
https://johncarlosbaez.wordpress.com/2014/05/14/hexagonal-hyperbolic-honeycombs/
11. #### modi123_1

24 Mar 2014 - 13:20
NP hard problem? Graph theory? Colored balls?! what's not to love?
http://jacquerie.github.io/hh/
12. #### macosxnerd101

12 Feb 2014 - 12:21
Thanks, everyone!
13. #### Martyr2

11 Feb 2014 - 11:53
Congrats on the legendary status. Well deserved.
14. #### Dogstopper

10 Feb 2014 - 11:21
Wow. 10k reputation! That's pretty amazing
15. #### belgarion262

10 Feb 2014 - 09:49
10,000 Rep, congrats :p
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