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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. |
Inspired again by "Invalid Item" ![]() First, let's get the turkey in the room out of the way: Unthanksgiving Day ![]() ![]() The first link, there, provides a good bit of detail about Unthanksgiving. In brief, it's also known as The Indigenous Peoples Sunrise Ceremony, and it takes place on Alcatraz on the fourth Thursday in November. Now, I can't claim Native American heritage, and it's against my principles to do anything but sleep at sunrise (especially in that time zone, which, if my luck holds out, I'll enter in a couple of weeks), but I appreciate that it happens. The history of it is absolutely worth reading. In contrast, no information is provided for the second link, except for its name and that it also coincides with US Thanksgiving. There's another link to follow in there, but I can't be arsed. My only comment on it is that if you're thinking "tofurkey," please stop that. Some of these "holidays" for the year seem to be made up by kids. In the case of Wolfenoot ![]() I mean, technically, wolves are lupines, but even I tend to cut 7-year-olds some slack when it comes to technicalities. I'm more of a cat person, as you know, but I still like the idea of this holiday. Except for the social media aspects, as detailed at the link. Another one always observed on November 23 is Eat a Cranberry Day. ![]() ![]() Confession time: I'd originally thought to make this entire entry about Fibonacci Day. ![]() There are other observances this day, but the last one I want to highlight is of great personal relevance to Me, which makes it the Most Important: Doctor Who Day. ![]() The personal relevance, though, is only that I was introduced to the show, in syndication here in the US, when I was a kid, and immediately loved it. And still do, in all its regenerations. Not as much as Star Trek, maybe, but one must remember that, at the time, the only Star Trek was reruns of the Original Series, and a few episodes of the possibly non-canonical Animated Series (which is severely underrated). Apart from the movies, new Trek wouldn't come to be until 1987, so I got my SF fix from Doctor Who in the meantime. (The BBC missed a grand opportunity by not making "Doctor Who: The Next Regeneration." Don't look at me like that; they pun more than I do.) Like many people around my age, to me, Tom Baker will always be The Doctor—though I appreciate what other actors brought to the role, especially Tennant. So of all the things to celebrate today, for me, I think it's going to be that one. |