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Who's Online 6 Members, 0 Anonymous, 57 Guests (See full list)
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By Mars Hiroshi · Posted
Thank you very much! This helps. The binder is too big, but I'm not good at sewing TwT -
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By Adrianna Danielle · Posted
I oiled this one regularly.It was getting weak and quit finally this morning.Took the air tool fitting off and told the scrap metal guy that comes in to pick up the scrap he can have it -
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By Ivy · Posted
Thanks But honestly, I don't understand a thing in this thread. LOL -
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By Ashley0616 · Posted
calmness: : a period or condition of freedom from storms, high winds, or rough activity of water : complete absence of wind or presence of wind having a speed no greater than one mile (1.6 kilometers) per hour see Beaufort Scale Table : a state of tranquility -
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By Lydia_R · Posted
And I love your new profile pic @Ivy! Wow, looking great! -
By Jani · Posted
I hadn't heard about the John Sebastian invite. Interesting. He certainly would have blended in well with the other three. -
By Lydia_R · Posted
Thanks for responding @Vidanjali! You rock! Yes, I'm really good at trig and most of what you were writing about is old hat to me. I studied trig while I was living on the streets in 2004. After about two weeks of studying the Plane Trigonometry book that I had checked out from the Seattle library, I woke up at 3am on the sidewalk and realized that .5 is the sine of 30 degrees and .523 is the circumference measure in radians up to 30 degrees. After that, it all opened up for me and a few weeks later I coded an animated webpage slinky. I started getting into coding perspective properly. And then after a month or two of that, I went back to applying my new trigonometry skills to the collision detection I was coding previously only with ratios to make a video game I was calling Micropede, a Centipede type of clone. And then a few months after that I coded an Asteroids type clone with shields in about 4 hours that I called Bumper Bubbles. And with a bunch of effort of getting off of the streets and more studying, I went on to have a computer programming career for the last 20 years. I always get a kick out of getting paid to do trigonometry, but I'm certainly not doing it every day. This line of thought recently has come around to the old question of how to code the trigonometric function. What is the code inside of the multiplication, division and trig functions in a calculator? It seems that multiplication has the 10x10 multiplication table coded in as constants and then it loops to do numbers larger than 100 (for base 10). Division is just like how you would solve a division problem. It involves guessing. So a computer function to do division would have to go through loops while it guesses and uses multiplication. Then comes the trigonometric function. I've been thinking a lot lately that pi is calculated by producing a large physical wheel and rolling it out on a flat surface and measuring it. When I was on the streets, I would take a Starbucks stir stick and put a hole in either end of it. I'd put a push pin in one end and then my pen in the other end. That is one way to draw a perfect circle and it doesn't matter whether the stir stick is straight because the line between two points is always a perfect line. The other way to do it is with a string instead of the stir stick. When I was on the streets, it made me wonder how humans made perfectly straight, flat objects. My theory is that it evolved over time. Once you can create a perfect circle or saw blade, then you can use that to make a flat surface. But the trick is a crap in crap out deal. You have to start with a really perfect circle. But you have introduced a new concept here with the square root deal. Andy has been mentioning square roots with a song called the square root of two that he listens to. And that brings up irrational numbers and personally, with where I am at in math, I don't place a huge significance on "irrational" yet. I mean, would the same number have the same infinitely repeating pattern if it were expressed in a different base? Maybe it does. I don't tend to find the concept of that all too interesting. But how you mention sqrt(3)/2 is interesting and is something I haven't considered yet. You know, I could have been doing drugs on the streets, but I figured that I'd have a better chance at making a good life for myself if I studied this stuff and well, I was 33yo when I wound up on the streets and it's not like I felt I was missing out on some big drug experience that I hadn't experienced before. I got to the point where math and programming were more fun that drugs, so like that, I guess math became my drug of choice. Or work. Math is an inexpensive hobby. Hugs, Lydia_n
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