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Articles 1 - 10 of 10
Full-Text Articles in Mathematics
The Eight Monarchs (Some Mathematical Magic), Jeremiah Farrell, Eric Nelson
The Eight Monarchs (Some Mathematical Magic), Jeremiah Farrell, Eric Nelson
Scholarship and Professional Work - LAS
The eight Monarchs are the four Kings and four Queens of an ordinary deck of cards. We can perform our magic without a deck by using the grid below with the K-Q token ( a coin can be used instead if one wishes).
The Effect: The magician's back will be turned while Mark, the subject, places the token on one of the suit nodes. Mark is to remember this starting position. Then Mark makes a sequence of moves; a move being one of four possibilities: a horizontal move, a vertical move, or a diagonal move to a new node or …
Cube Mentalism, Jeremiah Farrell, Ivan Moscovich
Cube Mentalism, Jeremiah Farrell, Ivan Moscovich
Scholarship and Professional Work - LAS
Our tour of multidimensional cubes begins with the marking of the eight comers of a 3-cube with the eight words HOT, POT, POD, HOD, HAD, HAT, PAT, and PAD. The figure below shows how these eight inherit the labels of the HOT-PAD).die where the letter H is opposite P, the letter O is opposite T and the letter T is opposite the letter D...
The Stenographic Affine Plane, Oscar Thumpbindle, Jeremiah Farrell
The Stenographic Affine Plane, Oscar Thumpbindle, Jeremiah Farrell
Scholarship and Professional Work - LAS
This square, composed of familiar words, is semimagic because any row or column (the rook sweeps) anagrams into STENOGRAPHIC. "Semi" means the diagonals don't. However, there are four very special diagonals; those that have words with one of the four vowels of STENOGRAPHIC in common. These four bishop sweeps will be important later. Keeping with the chess piece theme, the reader will take notice of the knight 4-tours using the consonants P, H, Rand C. For example one of these is the P-tour SAP, PEG, PIN and TOP. Another set of knight tours traces the letters S, T, G and …
Prague Six, Jeremiah Farrell
Prague Six, Jeremiah Farrell
Scholarship and Professional Work - LAS
Draft of the 'Solution Page' for Jeremiah's puzzle "Prague Six", which was exchanged at the 2008 Prague International Puzzle Party. 100 puzzle designers create 100 copies of their puzzle and pass it out at the party and exhange them. This puzzle is also mass produced by Kadon Enterprises as "Chasing Squares".
The Magic Octagon, Jeremiah Farrell, Tom Rodgers
The Magic Octagon, Jeremiah Farrell, Tom Rodgers
Scholarship and Professional Work - LAS
The black nodes mark the corners of an octagon and each of these nodes in connected to four others by lines. The (rather hard) puzzle is to assign the sixteen numbers 0 through 15 to each of the sixteen lines so that each black node has a sum of 30 when the line numbers leading into it are added.
The word version of the puzzle was described in the article "Most-Perfect Word Magic", Oscar Thumpbindle, Word Ways Vol. 40(4). Nov. 2007.
Bailey's Hexameters, Jeremiah Farrell, Al Shapiro
Bailey's Hexameters, Jeremiah Farrell, Al Shapiro
Scholarship and Professional Work - LAS
Nat. Bailey was the most important English lexicographer before Samuel Johnson. Our interest in this essay is to report on some of the 1730 dictionary's entries for the "Entertainmen of the Curious".
Octahedral Dice, Todd Estroff, Jeremiah Farrell
Octahedral Dice, Todd Estroff, Jeremiah Farrell
Scholarship and Professional Work - LAS
All five Platonic solids have been used as random number generators in games involving chance with the cube being the most popular. Martin Gardenr, in his article on dice (MG 1977) remarks: "Why cubical?... It is the easiest to make, its six sides accomodate a set of numbers neither too large nor too small, and it rolls easily enough but not too easily."
Gardner adds that the octahedron has been the next most popular as a randomizer. We offer here several problems and games using octahedral dice. The first two are extensions from Gardner's article. All answers will be given …
Results And Examples Regarding Bifurcation With A Two-Dimensional Kernal, Scott R. Kaschner
Results And Examples Regarding Bifurcation With A Two-Dimensional Kernal, Scott R. Kaschner
Scholarship and Professional Work - LAS
Many problems in pure and applied mathematics entail studying the structure of solutions to F(x; y) = 0, where F is a nonlinear operator between Banach spaces and y is a real parameter. A parameter value where the structure of solutions of F changes is called a bifurcation point. The particular method of analysis for bifurcation depends on the dimension of the kernel of DxF(0,λ), the linearization of F.
The purpose of our study was to examine some consequences of a recent theorem on bifurcations with 2-dimensional kernels. This resent theorem was compared to previous methods. Also, some …
The First Gathering, Jeremiah Farrell
The First Gathering, Jeremiah Farrell
Scholarship and Professional Work - LAS
The following is a photocopy of a letter I sent to my good friend James P. Fink shortly after the first Gathering in 1993. It is not reqritten or edited in any way in hopes of conveying to you some sense of my awe at how very special this event really way. My son David, then a student in Boston, was also privileged to be invited by Tom Rodgers and David and I still feel overwhelmed by the experience.
There are so many memories- and so many friends. After you have read the letter, I will remark on some of …
The Magic Octahedron, Jeremiah Farrell
The Magic Octahedron, Jeremiah Farrell
Scholarship and Professional Work - LAS
An octahedral die has several advantages over its cubic cousin, not the least of which is its ability to magically model a four dimensional tesseract. We will use a four coloring of the die to illustrate the magic.