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Egypt NosReply
Mathematics in ancient Egypt Table of Contents The introduction of writing in Egypt in the predynastic period ( c. 3000 BCE) brought with it the formation of a special class of literate professionals, the scribes . By virtue of their writing skills, the scribes took on all the duties of a civil service: record keeping, tax accounting, the management of public works (building projects and the like), even the prosecution of war through overseeing military supplies and payrolls. Young men enrol
Apr 15, 2024, 7:26 pm - eddessaknight - Mathematics Forum

Nature of Randomness in Mechanical SystemsReply
Do PRNG's graze? Sounds like the title of a Philip K. Dick book...
Jan 17, 2024, 8:27 pm - ddude003 - Mathematics Forum

Weird treesReply
I'll take a hint. What kind of book was it?
Feb 6, 2023, 3:27 pm - db101 - Mathematics Forum

Approximating chaotic systemsReply
Chaotic systems are a subset of nonlinear systems. The following Nonlinear Dynamics video series by Prof. Liz Bradley , a course funded by the Santa Fe Institute, is worth a watch for better understanding nonlinear systems and practical issues when characterizing them. https://www.youtube.com/playlist?list=PLF0b3ThojznQ9xUDm-EbgFAnzdbeDVuSz During the course, she mentions a Nonlinear Time Series Analysis book, which is also worth looking at. The author of that book gave a talk wher
Sep 19, 2023, 8:16 am - Wavepack - Mathematics Forum

Expected Value of Lottery Jackpot, Given You Are A WinnerReply
You're right, I see it now. Poisson is also the wrong one because it has infinite support where as this distribution is finite. Thanks for the book recommendation, I got a shelf full of Dover editions. I can't believe more college courses don't use them just on the price alone, but they are written without much filler and leave the details to the reader, probably not suitable for most college students except math majors and grad students.
Jul 19, 2022, 11:53 pm - cottoneyedjoe - Mathematics Forum

Weird treesReply
After running lots of simulations I discovered the ratio of green to yellow to red stabilizes to a particular ratio, regardless of the initial state. That ratio is 50% green, 20% yellow, and 30% red. On this property the expected numbers of each (after a long enough time) is 50 green, 20 yellow, and 30 red. There's nothing special about 23, it's just a number that's large enough for the steady state (eigenvector?) to materialize. I also realized you got this from a linear algebra book (hardcover
Feb 7, 2023, 11:44 am - db101 - Mathematics Forum

My fascination -The first digitReply
I n my books a good predictor is measured by how he can correctly read the first digit. Ricklou's books are irrelevant because Ricklou doesnt pay out prizes. The state lottery pays out prizes. In the state lottery's book, a good predictor is someone who hits every single number, not just the first. Mathematically, the first number is no more or less important than the others, and this is the mathematics forum. When you make dumb non-mathematical posts, expect to get joke responses.
Aug 19, 2023, 4:22 am - db101 - Mathematics Forum

Approximating chaotic systemsReply
Mandelbrot is one of the OG researchers of chaotic systems. He introduced fractal dimension to help characterize chaotic systems. I have two of his books, which I bought while frequenting a used technical book store in the early 90s (before web browsing). The Fractal Geometry of Nature and Fractals, Form, Chance, and Dimensions are the two books. I just quickly scanned them over. I found and quickly looked at chapters 1,2, and the TOC of The (mis)behavior of Markets online. This looks to be earl
Aug 9, 2023, 9:54 am - Wavepack - Mathematics Forum

Weird trees
(Adapted this problem from a college textbook. As a hint, I can tell you what kind of book.) There's a species of weird trees that can change its leaf color once a year in the fall. The tree keeps that leaf color for a full year until the following fall, when it can change color again. The leaves change color randomly according the following rules. If the leaves are currently green, they can either stay green or turn yellow. The probability the leaves turn yellow is 1/5. If the leaves ar
Feb 6, 2023, 12:08 am - cottoneyedjoe - Mathematics Forum

How many combos in sequence for 5/36 matrix?Reply
The above post is very likely the single best post I've ever seen on The Lottery Post. Thanks very much for going the extra mile and giving me info on linear progressions that I hadn't even considered or even knew of. (Which is more the case... I wasn't a fan of math in school. I knew it could be fascinating as Hell, but because I didn't want to be a good student, I basically didn't bother to study it. I'm the type of guy that got a 'C' without cracking a book. I've often wondered what my grades
Sep 7, 2022, 12:46 pm - GiveFive - Mathematics Forum