Kev.in.Progress

Matrix Mulitiplication in C

Wed, 28 Nov 2012 19:22:13 -0500

Here is a problem I started looking at a month or so ago but put no effort in implementing it. If you are unfamiliar with matrix multiplication, this will not help you understand.

This part of code defines the Abstract Data Type used in the implementation. It is a simple data type and perhaps unnecessary. I just wanted a simple means of knowing what the dimensions of the matrix are without excess calculations.

This excerpt contains no error-checking. I did include it elsewhere, but found it is superfluous in this context. The computational complexity of this algorithm is O(N^3), where N is the inner dimension of the matrices being multiplied (i.e. this dimension must be equal in order to perform matrix multiplication).

Also of note, this is the first time I’ve posted embedded code into a blog post. I perused some blogs and one of note (“Why All Programmers Should Blog”) thought me something valuable. In order to better understand programming topics, one must document and explain to others. So, here begins posts of this nature.

Work is not what I want right now.

Fri, 08 Jun 2012 12:45:18 -0400

alexbrodie:

So I don’t have a job*

So I became a bum*

"I’m sorry I can’t hear you over the awesome"

Fri, 08 Jun 2012 12:37:45 -0400

“I’m sorry I can’t hear you over the awesome”

- Kevin O’Brien watching Sucker Punch in IMAX

eatsleepdraw: Thanks Ray Ray Bradbury August 22, 1920 — June 5,...

Fri, 08 Jun 2012 12:34:07 -0400

eatsleepdraw:

Thanks Ray

Ray Bradbury August 22, 1920 — June 5, 2012 I wouldn’t be doing what I am doing today, if it weren’t for Ray.

see more at http://mattspangler.com

Oh strip club, your marketing is strange.

Thu, 07 Jun 2012 12:29:16 -0400

Oh strip club, your marketing is strange.

Can you find that which does not belong?

Thu, 07 Jun 2012 12:28:07 -0400

Can you find that which does not belong?

Morning Math

Thu, 05 Jan 2012 10:24:40 -0500

I woke up this morning thinking why couldn’t the number 1 be prime. It has no other factors besides itself. Then I remember I had this conversation before. I told myself, it’s too early for math, debates, or logic. At that point, I remembered part of the definition for a prime number: two factors including one. Now to start the day.

+1 Tree Cutting

Thu, 29 Dec 2011 14:30:46 -0500

There once was a tree, towering three stories tall. It divided its trunk in three and made a canopy for itself. But as it grew high, it grew wide. Roots traveled outward, strangling the turf in its grasp. Then one day, from the depths of Hollywood, a sibling decided to cut this wood. For a half hour more, he thwacked with axe into the trunks three. Whilst he attacked its base, his father and brother took to the skies and chopped its limbs to a manageable size. At first thy were novice, for the father was struck in the chest by a limb. He crumpled. He writhed. He cried, “It struck me!” with a gasp. A moment passed, as the sons held breath and father struggled to follow suit. He calmed and soothed; he stood and continued. On with their work, for soon this arborous foe would fall his day. The tree swayed and father and sons pushed and pulled. In the last act of defiance, it fell toward the family’s abode. With shortened limbs, it missed. Silent it became. One trunk down, two to go. But that is for another day.

Beat Boxing Beardyman

Tue, 27 Dec 2011 15:16:00 -0500

Beat Boxing Beardyman:

Beatbox genius.

Even I’m not crazy enough to drink this.

Tue, 27 Dec 2011 15:14:54 -0500

Even I’m not crazy enough to drink this.

"In a world so full of connections, I feel left out of the loop. Time to dive in."

Tue, 27 Dec 2011 15:10:15 -0500

“In a world so full of connections, I feel left out of the loop. Time to dive in.”

Suck it RainMeter!

Mon, 27 Dec 2010 13:00:43 -0500

My brother told me about the Mac equivalent to rainmeter. It’s awesome. Learning all sorts of coding now.

My dad was describing the job description of a man in his...

Sun, 26 Dec 2010 23:27:41 -0500

My dad was describing the job description of a man in his workplace. Somehow it ended that the AutoPen would be a better candidate.

Now mobile with wheels!

The Inspiring Refridgetarian Text

Sat, 20 Nov 2010 01:52:00 -0500

The Inspiring Refridgetarian Text

The Advanced Placement Examinations are rigorous, demanding, and...

Fri, 16 Jul 2010 13:28:41 -0400

The Advanced Placement Examinations are rigorous, demanding, and pertinacious. Students who wish to take the exam must prepare. Such preparation is marred with difficulty, waves of stress, and possibly even psychological scars irreparable. Albeit such a grueling journey, it is the anxiety of after the test most unbearable. Students take the exam in early May and do not receive any notice to the passing or failure until mid-July. Even the anticipation of opening the letter is nerve wrecking to some. But to see the results laid in view and the realization of victory takes hold, no moment in a student’s life is more joyous.

Wow, I’ve been trying to get this to work for a long time...

Tue, 06 Jul 2010 12:41:00 -0400

Wow, I’ve been trying to get this to work for a long time and suddenly it does.

This is what happens after a Science competition in Gainesville when three guys are bored and trapped in a hotel room for an entire night.

WARNING: the volume is really bad and quiet.

No, I’m a banana! Look at ME move!

Sun, 13 Jun 2010 22:54:51 -0400

No, I’m a banana! Look at ME move!

There are only...

Sun, 13 Jun 2010 22:51:43 -0400

For all my life, I think I’ve summed up the 10 things I despise more than anything else in the world:

Math puns and binary.

Damn.

Happy St. Patrick’s Day! “The Great Song of...

Wed, 17 Mar 2010 18:21:36 -0400

Happy St. Patrick’s Day!

“The Great Song of Indifference”

- Bob Geldof

I know this is an old, but incredibly hilarious. Plus, now I can...

Tue, 16 Mar 2010 21:26:38 -0400

I know this is an old, but incredibly hilarious. Plus, now I can view on my Droid.