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Saturday, Apr. 27, 2024

3:20pm EDT

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Complex Numbers

by Robert Waltz

Rated: 18+ · Book · Personal · #1196512

Not for the faint of art.

Complex Numbers

A complex number is expressed in the standard form a + bi, where a and b are real numbers and i is defined by i^2 = -1 (that is, i is the square root of -1). For example, 3 + 2i is a complex number.

The bi term is often referred to as an imaginary number (though this may be misleading, as it is no more "imaginary" than the symbolic abstractions we know as the "real" numbers). Thus, every complex number has a real part, a, and an imaginary part, bi.

Complex numbers are often represented on a graph known as the "complex plane," where the horizontal axis represents the infinity of real numbers, and the vertical axis represents the infinity of imaginary numbers. Thus, each complex number has a unique representation on the complex plane: some closer to real; others, more imaginary. If a = b, the number is equal parts real and imaginary.

Very simple transformations applied to numbers in the complex plane can lead to fractal structures of enormous intricacy and astonishing beauty.

http://www.ddewey.net/mandelbrot/

Signature for Honorable Mentions in 2018 Quill Awards

A signature for exclusive use of winners at the 2019 Quill Awards

Signature for those who have won a Quill Award at the 2020 Quill Awards

Show Recent Comments

10 Most Recent Blog Comments:

Elisa the Bunny Stik

about 5 hours ago
In response to "Pleasure and Pain"

it illustrates why it's important to have people from different backgrounds, with different worldviews, working on scientific research.

This right here is why I get rather irritated by people poo-pooing college these days. I feel like that attitude effectively shits on minority populations that may not have strong finances but do possess persistent curiosity and want to learn about various subjects in-depth. In the 90s, these groups were exclusively told to go to trade schools even if they had the aptitude for college education. Nowadays the blanket "Everyone should consider a trade" mantra employs a more subtle (but still abundant) form of discrimination. I'm so over it.

1 Like

Kåre Enga in Udon Thani

Apr 25, 2024 at 3:16am
In response to "Going to the Dogs"

I have ants in Thailand. Will I miss them in Montana? No.

Would it be nice to have a cat and a dog, here or there? Yes, but I have struggles keeping my neglected plants alive.

Not every situation is suitable for everything or everybody.

Kåre Enga in Udon Thani

Apr 25, 2024 at 3:09am
In response to "Tipped Out"

I don't tip. In my travels I rarely find tipping the norm.

I also don't haggle.

When you add the tip... the true cost of America becomes evident. But what would I know? I travel while others who have double my income can't pay rent.

Kåre Enga in Udon Thani

Apr 25, 2024 at 2:58am
In response to "Reality Cubed"

My dreams may be different from your dreams but if we share them with others then some form of the dream may live on. Regardless, if we don't eat we die. "Joy gives us wings." "Reality bites."

Aiva Raine

Apr 24, 2024 at 4:26pm
In response to "Tipped Out"

Agreed. I'll tip and well, for actual waitstaff at restaurants. I'll tip appropriately for bell-staff who assists with luggage at hotels, the more luggage, the bigger the tip. I'll give a tip to the valet as well. Beyond that- I don't tip. Certainly no tip for the fast food workers, coffee baristas, grocery store clerks, etc.

It annoys me to no end that we're being asked to tip for all kinds of jobs where they are being paid an hourly wage. I've worked as a waitress when I was young and my daughter currently does. In those jobs- she absolutely depends upon proper tipping to make a decent wage. And I hate the fact that she is dependent upon tips to do so.

It leaves women especially at the mercy of arsh**() on whether she wants to accept hostile, negative, sexist, harassing, demeaning, and negative behavior from her customers in order to make a living. It condones people treating their waitstaff like shite in order to get paid. While there is much improvement from the 30 years ago when I was working as a waitress in the skimpy outfits we were forced to wear- it's still an issue at non-chain, independent owned restaurants and diners.

Women are left to the mercies of jerk customers and their only recourse is the manager who they have to hope supports their waitstaff rather than the jerk customer. Tipping should be eliminated. All employees should be paid a livable wage and waitstaff especially should not be dependent upon tolerating crappy to obscene behavior from customers in order to make a living.

But, until that happens- I always tip at least 20% and often times more. Very rarely have I tipped lower and the service in those situations was abysmal and they still got 10%.

1 Like

GeminiGem of House Lannister

Apr 23, 2024 at 6:51pm
In response to "Going to the Dogs"

I don't understand the intersection, either. I lived in a much smaller city and found that having dogs was a hassle (although it didn't stop me), what with the complainey neighbors, the extra licensing, etc. I live in a rural location now and it works great. I can't wrap my head around living in NYC with or without a dog, although I like the idea of a place that issues a canine and supplies upon moving there. Can that please be a thing?

1 Like

Lazy Writer est 4/24/2008

Apr 23, 2024 at 3:31pm
In response to "Going to the Dogs"

I love my little dog...but I live in a biggish house with a fenced backyard.

1 Like

Aennaytte: Free & Wild in GoT

Apr 23, 2024 at 3:14pm
In response to "That's Cole"

I knew and ate Kohlrabi before I ever heard of kale. Kohlrabi is so much better in every way.

That last quoted sentence is hilarious. I am glad that I wasn't bred to be a Brussels Sprout.

1 Like

Aennaytte: Free & Wild in GoT

Apr 23, 2024 at 3:11pm
In response to "Cash Stash"

The discussion of money is an interesting one. Remember the recent collapse of a few banks? I think it was about a year or so ago?
Yes, deposits were FDIC insured up to $250,000 per depositor. But some people and companies had more money in that bank than the FDIC was insuring.
I never followed up on what happened to those people. I don't run in circles of people who own that much cash.

My accounting professor took half a period to explain to us what happened and how the bank went from Silicone Valley darling to dead so fast.

He also told us that the value we give money is not backed by anything except our hope and faith that our economy will keep going.

We didn't discuss whether the value of money needed a lower income class of people.

1 Like

Aennaytte: Free & Wild in GoT

Apr 23, 2024 at 3:04pm
In response to "Revisited: "Hack This""

In my last psychology class, we discussed the evolution of the brain. It is now settled science that we evolved to have not only larger, but also vastly more powerful brains than most other animals because we learned how to cook (process) our food.
Although we are only about 1/4 to 1/3 of a normal gorilla, we eat half of the calories in a day. Not only that, we prepare the food in a way that we get to use more of the calories that we ingest.
The result is that our brain takes up more space in our noggin than a gorilla brain takes up in his noggin. Not only that, each of our brain cells is smaller, so we can fit exponentially more of those into our head.

Now, using all that goodness ...

1 Like

August 25, 2020 at 12:06am

#991528

Wave Function Collapse

Not a lot of commentary today. I started late and I want to hurry up and get to the drinking part of my evening.

But Contest results below!

http://nautil.us/issue/83/intelligence/how-to-make-sense-of-quantum-physics

How to Make Sense of Quantum Physics
Superdeterminism, a long-abandoned idea, may help us overcome the current crisis in physics.

Mostly I'm just leaving this here because it touches on a lot of subjects I tend to post on, and it starts out as a pretty good explanation of quantum physics. It goes on to branch out into philosophy and even questions of free will. Recommended reading -- just remember the entire second part is speculation.

So on with the marketing question from yesterday.

Mini-Contest Results!

Great entries, and tough to pick just one -- but I managed. As usual, everyone will get another chance in a few days.

Aennaytte: Free & Wild in GoT

, the phrases "tone-deaf," "bad optics," and "read the damn room" come to mind there.

Sumojo

, this is exactly why I try to stay away from hot-button issues. I don't always succeed.

⭐Princette♥PengthuluWrites

, how that got past the number of people who would have had to have been involved is a mystery. Perhaps they were all drunk.

prettypoetry, yeah, I remember that. You do one thing and you've been doing it for decades, and all of a sudden you want to change the formula that works (that is, without seismic macroeconomic shifts as with JC Penny and Sears, see below)? See also: New Coke.

Wordsmitty ✍️

, what in the hell were they thinking?

Lostwordsmith

, true, not really what I was looking for, but darkly hilarious.

Charity Marie - <3

, I could say the same thing about Sears. Sears built its entire brand by people in remote areas being able to order stuff from them through the mail, from a catalog. They were huge; at one point, they had their name on the tallest building in the world, and they were a household name. The Internet comes along, and Sears sticks to its b&m model; Amazon adopts an updated Sears strategy and becomes a juggernaut. Sears gets gutted by private equity and turns to vapor. As for Sherwin Williams, true story (at least as far as my memory might be reliable): the first time I saw an SW logo as a kid -- it hasn't changed in at least 50 years afaik -- I remember thinking, "but where is the gravity coming from that's letting the paint drip off the planet? Point being, I was a huge nerd even as a child.

Everyone who commented without an example, I appreciated your responses too -- thanks!

In awarding the winner, I wanted to consider something as close as possible to the Tropicana and Coke fails, and the idea of a marketing strategy being so outrageously bad that it led to the company becoming not-a-company, so:

Wordsmitty ✍️ gets the Merit Badge for: Just For Feet, a giant shoe retailer, decided to take the plunge with a Super Bowl ad to an estimated 120 Million plus viewers on January 31, 1999. Unfortunately, ...

The commercial began with four caucasian-looking men in a Humvee with the license plate "Just For Feet." They track footprints in Kenya until they overtake a black man and offer him water. He collapses (drugged?) and they put a pair of Nikes on him. When he wakes and sees the shoes, he screams "Nooooooo!" and runs off trying to shake the shoes from his feet.

Quoting the book, "The backlash from the ad was immediate and fierce." The company didn't survive to see the new century.

Thanks again and we'll do this again soon!

4 Like • Comment • View 1 comment

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