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Sunday, May. 5, 2024

11:01pm 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:

🌕 HuntersMoon

about 14 hours ago
In response to "Revisited: "Fail""

Shame on you for making fun of the Hoggs. Being a Virginian, Bob, you should know the reverence that the name Hog inspires recalling the glory days of the Washington Redskins (now the Commanders). The Hogs

1 Like

Charity Marie - <3

a day ago
In response to "Overdraft Dodgers"

I have four different accounts and each one has a purpose. Savings, personal debit card, auto draft debit card, and a b8lls account. The bills account is the only one that can overdraft as it's for manual big bills like rent, cell, electric, etc. Stuff that mist be paid. The rest are blocked from overdraft and the savings account has no debit card attached. My bank accounts have been hacked too many times so I keep it this way to protect myself. It is very rare I ever pay an overdraft. I have a money market account for money greater than $10K so it gains interest and isn't touched except emergencies. That is a secure account too.

1 Like

Kåre Enga in Montana

May 3, 2024 at 4:23pm
In response to "It's a Crime"

Thailand versus Montana versus New York versus Costa Rica.

Theft? Not in Thailand! Not a huge concern in Missoula, perhaps in NYC, definitely an issue in Costa Rica.

Violence? Not a huge concern in Thailand. More so in MT, NY and CR (where it wasn't a concern years ago), definitely a problem in Saint Louis and the US in general. El Salvador is known for violence.

Death by vehicle. Not a huge concern in either NY or MT. A rising problem in Costa Rica. Thailand is one of the worst places in the world in this respect.

You may be shot and killed in parts of the US but you're more likely to be run-over in Thailand.

1 Like

Simply Me

May 3, 2024 at 11:58am
In response to "It's a Crime"

I get it. The fear spreading jerks wants us to have an "us vs. them" attitude. The division gives them leverage. (they think)

1 Like

🌕 HuntersMoon

May 2, 2024 at 11:37am
In response to "Butt Of Course"

My wife tried waterskiing once... called it the 100-yard douche.

Talk about retaining water...

2 Like

Elisa the Bunny Stik

May 1, 2024 at 10:53am
In response to "Mad as Hell"

"But if you want to really see how anger is useful, you need to consider how it's used as a tool for manipulation."

This is a line that must be regarded with care. After all, there are people that get angry about the way they are being treated on a large scale and harness that anger to change their circumstances. There is some level of manipulation in this angry but still legitimate flavor of activism. We do have to consider the possibility that this angel's usefulness can have net benefits (such as environmental cleanup and protection; see the Live Canal as an example).

GeminiGem survived GoT

Apr 29, 2024 at 1:53pm
In response to "Supplementary"

Working in health care for a zillion years, I've heard it all. The whole thing about something being natural, therefore it would be good for a person is very, very, very...very prevalent. An internist I worked with had a fantastic comeback to that line of thinking. She would say, "Arsenic is natural, are you going to start taking that?"

1 Like

Lazy Writer est 4/24/2008

Apr 28, 2024 at 2:14pm
In response to "Revisited: "Exercise""

I will be 75 in July. My stepdaughter gave me a bike because I wanted to ride it again. Well, I started off shaky and stayed shaky...then I fell off it...A passing motorist stopped to help me get up...I have NOT been back on that bike and will not ever again.

🌕 HuntersMoon

Apr 28, 2024 at 10:43am
In response to "Revisited: "Exercise""

So, you're saying that now you pedal your ass differently?

Elisa the Bunny Stik

Apr 27, 2024 at 10:33am
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

May 1, 2023 at 12:51am

#1049063

Going South

A Monday update about my Sunday travels:

The weather didn't hold out for me as I drove south into North Carolina yesterday morning, and I discovered, or rather, confirmed what I already knew about certain modern car features: rain can confuse the hell out of them.

When I was looking for a new-to-me car last fall, I had a few requirements: I knew I wanted a Subaru Crosstrek with a decent sound system and a sunroof. Most everything else was negotiable. Well, it turned out that the one they had on the lot fit the bill; though the system wasn't as high-end as the one in my previous Subaru, it's good enough.

I wasn't looking for smart features specifically, but they came with the car. For instance, Android Auto for connecting my phone's Maps to the car's screen. But also things like lane sensing and adaptive cruise control. Well, that's what I call it; I don't know what the official name is. It's like, if you set the cruise control but the car in front of you insists on plodding along at 2 mph below your cruise speed, it senses this and slows down.

A lot of people don't like new things, so I've heard all the hand-wringing about it, but it works. The car doesn't force you to use it. What I wasn't sure of was how it would handle real rain. Yesterday, I found out. No, not the hard way; turns out that when the sensors are blocked, it warns you. Okay, cool. Fair enough. Something to consider if we manage to get real autonomous vehicles before civilization collapses: how it'll handle reduced visibility. Probably by using something other than visual sensors. Or maybe by giving up and waiting for the rain to slow down. I don't know; I'm not that kind of engineer.

The sunroof is mostly useless in the rain, too, but that's as expected. Hence the name. It's not a rainroof. I've heard it called a moonroof, too, and I always thought that the difference was one can be opened and the other is fixed like a windshield, but apparently not. Whatever. Or maybe one of them is for baring your butt at other drivers? That seems dangerous.

The weather cleared up around midday, and I ended up in a small town I'd never even heard of, let alone been to (Kinston, NC) which turns out to have a couple of good breweries, so I stayed. One of the breweries is affiliated with the motel downtown, which, really, I don't know why more people don't pursue that business model. "Can't drive? Stay safe in one of our rooms!" Maybe they're afraid of the cleaning that might be necessary.

Today (Monday) is my last full day on the road; I expect to return home on Tuesday, after which I'll return to my usual kinds of blog entries.

But so far, I'm calling the trip a success: I had some new experiences, mostly positive, though even the negatives, such as the annoying push-button hotel from a few days ago and the occasional lower-quality beer, were worth the inconvenience, as they gave me stories to tell.

That could, of course, turn around ("go south," as it were), and if I were a writer, I'd be able to come up with sixty different plot twists to ruin the trip. Oh, wait. I am a writer. Well, bad things can happen at any time, road trip or not, so I'll just keep enjoying the journey for as long as it lasts.

6 Like • Comment • View 4 comments

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