Recreational Math Recreational Math by Bernie Freidin 19992000. These grids have the following property take any four points in a rectangle formation {A, B, C, D} and they will satisfy the equation http://bork.hampshire.edu/~bernie/math/
Extractions: A B C D A D B C =1652625. I used to be very interested in finding large grids with this property - to this end I wrote some very complex programs to search for smaller grids and then "stitch them together" into larger grids. In the examples below, I have one 8 by 8 grid with 42 points on it (out of a total of 64), and one complete 6 by 4 grid with all 24 points - these were my master creations. I also found a complete grid which was 3 by 81, and I could have extended it even further, but the values were numbers hundreds of digits long. Another recreational math interest of mine has been square-packing. Here are a few examples I did:
MathPuzzle.com Famous director assisting with a recreational math article wow. Math Puzzle on Futurama Tonight s episode of Futurama (MindSwitcher) involved http://www.mathpuzzle.com/
Mathematics Recreational Math | Tutorvista.com Recreational math is nothing but mathematics tricks, puzzles and math games. Maths is one of the most important subjects for every student. http://www.tutorvista.com/math/mathematics-recreational-math
Recreational Math Normal Topic Hot Topic (More than 15 replies) Very Hot Topic (More than 25 replies) Locked Topic Sticky Topic Poll http://www.ilearnmath.net/help/index.php?board=11.0
Math-by-Mail - A Correspondence Program In Recreational Math Mathby-mail is an extracurricular math enrichment program that gives students in school the opportunity to correspond with mathematicians and discuss topics in recreational math. http://www.allacademic.com/meta/p275598_index.html
Extractions: The correspondence is done through a series of math booklets dedicated to topics in recreational math. The booklets are available either in hardcopy or online via a special purpose website dedicated to the program. The correspondence with the mathematicians is conducted via an online forum available at the website. The completed booklets are sent to the mathematicians by mail or submitted electronically for review.
Recreational Math | TutorVista Now, we are going to see some tricks in math Trick 1 Mathematics recreational math Here, we may think any number in our mind then doing the given process, the answer http://www.tutorvista.com/topic/recreational-math
Math Puzzles For Kids Recreational math puzzles for gifted secondary students. Fun and Challenging Math Problems for the Young, and Young At Heart . These problems are aimed at junior high and http://www.eklhad.net/funmath.html
Extractions: Fun and Challenging Math Problems for the Young, and Young At Heart These problems are aimed at junior high and high school students with a flare for mathematics and logic. These are "real world" problems, rather than abstract riddles about sets or trigonometry etc. The questions should be accessible to a wide audience, even if the answers are not. When you find a question that interests you, it's tempting to just read the answer at the end of this web page, but please don't - that would spoil the fun. Instead, think about the problem in your spare time for a few days. Talk about it with your friends. Then, if you're really not getting anywhere, or you think you've got the answer, come back and read the answer. Educators might want to present the problem on Friday, let the students think about it over the weekend, and talk about it on Monday. A school has 1,000 students and 1,000 lockers, all in a row. They all start out closed. The first student walks down the line and opens each one. The second student closes the even numbered lockers. The third student approaches every third locker and changes its state. If it was open he closes it; if it was closed he opens it. The fourth student does the same to every fourth locker, and so on through 1,000 students. To illustrate, the tenth locker is opened by the first student, closed by the second, reopened by the fifth, and then closed by the tenth. All the other students pass by the tenth locker, so it winds up being closed. How many lockers are open?
Baywood.com We are working on providing the Journal of Recreational Mathematics electronically as well. If you would like to be notified as to our progress, click here http://www.baywood.com/journals/previewjournals.asp?id=0022-412X
Risk Dice-Thrower And Probability Calculator Optional Enter up to 10 defender countries to be attacked sequentially. One attacker die will be left behind each time a country is conquered; the number displayed http://www.recreationalmath.com/Risk/
Extractions: RISK® Dice-Thrower and Probability Calculator Attacker Defender Enter number of armies: country 1 Optional : Enter up to 10 defender countries to be attacked sequentially. One attacker die will be left behind each time a country is conquered; the number displayed represents the number of armies on the most recently conquered country.
Baywood.com A journal devoted to the lighter side of mathematics. Featuring thought http://www.baywood.com/
Recreational Math Recreational Math Brain Teasers discussion You have 120 coins, all of which are visually identical. E Except for one coin, they all weigh exactly the same. http://www.physicsforums.com/showthread.php?t=332035
Recreational Math - Blogs, Pictures, And More On Blogged I want to ride this loop on Friday. On Friday night, I have dinner and a ride planned with with Liza at 5pm. So I have to be home and in the shower by 4pm to be safe. http://www.blogged.com/topics/recreational-math/
Extractions: var logged_in = ""; Submit a Blog SignUp Login Blog Directory ... Old Home Blogs about: Recreational Math Recreational math Cycling Spokane I want to ride this loop on Friday. On Friday night, I have dinner and a ride planned with with Liza at 5pm. So I have to be home and in the shower by 4pm... to be safe. The loop is 50 miles. About 38 of it is dirt/forest road. Planning for 6 hours of riding seems prudent. Drive is 2 hours each way. So, I need to leave my house no later than 6am Friday morning. Hmm. related tags: bike couple midnight century place ... Golf Stinks ... that wasn't refunded in full. He used the term "golfer math " in a way I had never heard. Actually, I never even heard of the term "golfer math ", never ... that has as many opportunities to cheat as golf does, and for the record, I am basing this on a recreational level. Obviously, pro tournaments have a ton of eyes watching every stroke. Golfer math has also been disguised ... related tags: clubs Math ematics and Multimedia Carnival #4 Wild About Math ... 46 economic (weights and measures) and one mod 7 recreational Math Hombre blog on November 8th. Submit your ... Carnival #2 Carnival #3 Please Help Promote the Carnival The
Extractions: There are tons of books out there on Recreational mathematics. Recreational math is loosely defined as follows in Wikipedia: "Not all problems in this field require a knowledge of advanced mathematics, and thus, recreational mathematics often piques the curiosity of non-mathematicians, and inspires their further study of mathematics. I personally think Recreational Math is a great way to introduce math concepts, and also learn to have fun with higher math learning, irrespective of any age or background. I am listing a few of the books here, which I hope is of help to someone. I am not listing the ages here because they are meaningless in the case of my children, to appreciate and learn things. But the links to amazon should give you some idea on the books whether it is suitable for your family/children. Some books maybe advanced, but you may find some interesting and accessible pages in these books to explore with your children. Some of these books could be used as part of a weekly or monthly fun math club a co-op class. Many of these books are available in the library as well. Please see this is not an exhaustive list.
World Of Escher - Roger Penrose That s right recreational math; the passion of Sir Roger Penrose who was recently knighted for his outstanding contributions to mathematics. http://www.worldofescher.com/misc/penrose.html
Extractions: The place for everything Escher View Cart Checkout Help Home ... Contest Select an Artwork Another World II Ascending and Descending Balcony Belvedere Birds; 1926 Woodcut Bond of Union Circle Limit IV Continuous Knot Cycle Division Double Planetoid Dove Dragon Drawing Hands Dream Encounter Eye First Day of Creation Fish and Scales Gravitation Hand with Reflecting Sphere Hell Horseman; Reg Div Plane III House of Stairs Liberation Magic Mirror Man with Impossible Box Metamorphose I Metamorphose II Mobius Strip II Mosaic II Mummified Priests Periodic Design A13 Pine Fish Plane Filling Motif with Reptiles Print Gallery Puddle Rabbit Regular Division of Plane I Relativity Reptiles Rind Skull with Cigarette Snakes Snow Stars Still Life and Street Still Life with Sphere Sun and Moon Symmetry E105; Pegasus Symmetry E106; Bird Symmetry E110; Bird/Fish Symmetry E117; Crab Symmetry E118; Lizards Symmetry E128; Birds Symmetry E12; Butterfly Symmetry E21; Imp Symmetry E25; Lizards Symmetry E28; Three Birds Symmetry E32; Fish Symmetry E34; Bird/Fish Symmetry E47; Two Birds Symmetry E55; Fish
Math Forum Discussions - Alt.math.recreational.independent An unmoderated newgroup focused on recreational mathematics. Posts to this group do not disseminate to the alt.math.recreational newsgroup, or vice versa. http://mathforum.org/kb/forum.jspa?forumID=435
Recreational Math | Facebook Welcome to the Facebook Community Page about Recreational Math, a collection of shared knowledge concerning Recreational Math. http://www.facebook.com/pages/Recreational-Math/358980107513
Recreational Mathematics File Format PDF/Adobe Acrobat http://math.fau.edu/Yiu/RecreationalMathematics2003.pdf
Curve-stitch Isometric Cube Curvestitch isometric cube design by Lionel E. Deimel. Curve-stitch Isometric Cube The figure above is an instance of a design I created more than forty years ago. http://www.deimel.org/rec_math/cube.htm
Extractions: Home Up Next Curve-stitch Isometric Cube The figure above is an instance of a design I created more than forty years ago. (This figure is covered by a Creative Commons license. For more information, click here .) A framed version of it hangs on my kitchen wall. That picture is a negative print (i.e., white on black) of an India ink drawing on vellum. It is a minor conversation piece—first-time viewers are often surprised to learn that the drawing contains no curves. More amazing to me is that I drew it with drafting pen and straightedge without introducing major imperfections. I cannot imagine repeating the feat! The figure shown here is a conversion of output generated using Adobe PostScript . It doesn’t reproduce the razor-sharp lines of the original, but it does capture the spirit of the figure. I recently replaced most of the graphics on this page with PNG, rather than GIF images. These images are much sharper, but the page loads slowly because the image files are bigger. (Sorry about that.) A SVG graphic of this figure can be found here , although not all browsers will render it properly. (Try zooming in and out and notice how the image changes.)
RECREATIONAL MATHEMATICS Your browser may not have a PDF reader available. Google recommends visiting our text version of this document. http://www.ams.org/bookstore/pspdf/mbk-63-prev.pdf
