About Wyrd Smythe
The canonical fool on the hill watching the sunset and the rotation of the planet and thinking what he imagines are large thoughts.
Graph of ax2 for diff a values.
(green < 1; blue = 1; red > 1)
This is a little detour before the main event. The first post of this series, which explained why the imaginary unit, i, is important to math, was long enough; I didn’t want to make it longer. However, there is a simple visual way of illustrating exactly why it seems, at least initially, that the original premise isn’t right.
There is also a visual way to illustrate the solution, but it requires four dimensions to display. Three dimensions can get us there if we use some creative color shading, but we’re still stuck displaying it on a two-dimensional screen, so it’ll take a little imagination on our part.
And while the solution might not be super obvious, the problem sure is.
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12 Comments | tags: complex numbers, fun with numbers, imaginary unit, numbers, parabola, real numbers, x-squared | posted in Math
Yes, this is a math post, but don’t run off too quickly. I’ll keep it as simple as possible (but no simpler), and I’ll do all the actual math so you can just ride along and watch. What I’m about here is laying the groundwork to explain a fun fact about the Mandelbrot.
This post is kind of an origin story. It seeks to explain why something rather mind-bending — the so-called “imaginary numbers” — are actually vital members of the mathematical family despite being based on what seems an impossibility.
The truth is math would be a bit stuck without them.
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23 Comments | tags: complex numbers, complex plane, fun with numbers, imaginary unit, integers, Leopold Kronecker, natural numbers, numbers, rational numbers, real numbers | posted in Math
Here’s yet another unplanned post, mostly because there was something important I forgot to mention yesterday, but also because I started watching three different Netflix shows (or maybe call it two-and-a-half), and all three are fit for a Sci-Fi Saturday post, so here I am again.
I dither about three because one of them wasn’t new, it was season two I started of Siempre Bruja. But I hadn’t yet seen any of Lost in Space or the new Chilling Adventures of Sabrina. I’ve been suspicious of the former, and the latter isn’t quite my cup of tea on several counts.
But first you should know about (Your) CloudLibrary!
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32 Comments | tags: Always a Witch, Angely Gaviria, cloudlibrary, science fiction, science fiction TV, SF, Siempre Bruja | posted in Books, Sci-Fi Saturday
Fissure #8.
Wow, for the third time this month (third time in a week) I’ve realized the day calls for a post I hadn’t planned. The first time was when the MLB delayed the baseball season. The second time — the very next day — was Pi Day and Albert Einstein’s birthday.
This time it’s the equinox (and a friend’s birthday; shout out!). For those of us in the northern hemisphere it’s the spring (vernal) equinox, and that’s my favorite of the four annual solar node points (two equinoxes; two solstices). It means we have a whole half a year of light ahead.
So I just had to post something.
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11 Comments | tags: equinox, fissure 8, fissure vent, Kilauea, lava, magma, spring equinox, vernal equinox | posted in Life
When possible, I try to find a theme for the Wednesday Wow posts. Last time, for instance, the theme was aviation and fireworks (two things you wouldn’t normally think went together, but in one case they delightfully did).
The problem is that I’m jaded and have seen a lot, so I can be hard to impress. Not lots of things raise to my highest rating, Wow! Fortunately, I’m not so far gone I can’t still see a world filled with wonder, some of which drops my jaw.
The theme, such as it is, concerns measurements, especially tiny and precise ones. Like, for instance, Planck Length tiny.
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31 Comments | tags: analog, analog recording, digital, digital recording, Planck Length | posted in Wednesday Wow
I’ve been slowly going through the NPR Tiny Desk Concerts. Most of the musicians and groups are unknown to me (it’s been decades since I even attempted to keep up with music). Truth is, most of the acts are interesting, but don’t really grab me. Maybe one in ten engages; none have made me a new fan.
Which is a whole other story. I mention it because many of these music makers are sweet, gentle, loving people who just want everyone else to be sweet, gentle, and loving. It’s a common sentiment. Banish the bad forever!
But balance is required. There is a Yin-Yang aspect to life.
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50 Comments | tags: civilization, greatness, human brain, human consciousness, human mind, humanity, Yin and Yang | posted in Basics, Philosophy
I hadn’t really planned to, but it’s both Pi Day and the birthday of Albert Einstein. As a fan of both the number and the man, it seems I should post something.
But I’ve written a lot about pi and Einstein, so — especially not having planned anything — I don’t have anything to say about either right now. In any event, I’m more inclined to celebrate Tau Day when we have double the pi(e). I do have something that’s maybe kind of vaguely of pi-ish. It’s something I was going to mention when I wrote about Well World.
It’s a little thing about hexagons.
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2 Comments | tags: Albert Einstein, hexagon, pi day | posted in Math
These days, during the regular baseball season, pretty much every game is broadcast on TV by someone, so it doesn’t take a lot of effort to see every game your team plays (it generally just takes money). But during Spring Training it’s rare that a game your team plays is televised.
I was looking forward to watching a Twins game yesterday — one of those rare Spring Training games that was being televised. After several months of winter (and no baseball), I’m ready to start seeing games again.
But I turned on the TV to discover the MLB cancelled Spring Training!
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11 Comments | tags: baseball season, coronavirus, Major League baseball, Spring Training | posted in Baseball
In the Rational vs Real post I mentioned that real numbers were each “an infinitely tiny island separated from direct contact with all other numbers.” The metaphor of each real number as an island comes from how, given any real number, it’s not possible to name the next (or previous) real number.
It’s easy enough to name a particular real number. For instance 1.0 and 3.14159… real numbers. There are infinitely many more we can name, but given any one of them, there is no way to get to any other number other than by explicitly naming it, too.
This applies to a variety of numeric spaces.
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9 Comments | tags: complex numbers, continuum, integers, math theory, mathematics, natural numbers, numbers, rational numbers, real numbers, Theory of Mathematics | posted in Math
They say you’re supposed to let sleeping dogs lie. Personally, I’ve always thought a sleeping dog was pretty honest — I’m not exactly even sure how anyone could lie in their sleep. Tell fibs in your dreams? (Some old sayings just don’t make any sense.) I don’t think we should let anyone get away with lying, sleeping or otherwise (especially Presidents).
I do think there is something extra sweet about a sleeping dog. Maybe it’s a matter of the trust they’re showing — how they feel safe with you. Next to you, they can relax and fall into a deep snoring sleep. Dogs can have concerns about being left home alone, and if they are in your lap they know right where you are.
In any case, from the terminally cute file…
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3 Comments | tags: Bentley, dog yawn, dogs, Sabbath, sleeping dogs, Sunday | posted in Life
Logos con carne 