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"El Nido Fractal," by Karl Kattchee (University of WisconsinLa Crosse)Digital Print, 10" x 16", 2009. The boundary between land and sea is complex, like a fractal. At the bottom of this drawing we have land, represented by rigid lines and shapes. At the top, there is the sea, swirling around. In between is the boundary, where the right angles gradually give way to curves. There is selfsimilarity, as one would expect in a fractal. "What is mathematical art? This question not only begs for criteria to make the judgment, but it also asks how math and art interact. That strange interaction is what makes math art fun for me. I almost always start with sketches on paper, but I recently began transferring them to the computer and carrying on the work electronically. As such, I can spend time experimenting with different ideas and change my mind often about what I'm doing. While I try to render mathematical ideas in my art, I also realize that the artistic process is itself a lot like the mathematical process. Sometimes the original 'problem' needs to be modified after careful 'research'. To me, the final product is a lot like a theorem."  Karl Kattchee (University of WisconsinLa Crosse) http://www.uwlax.edu/faculty/kattchee/
May 10, 2010


"Gong Gan," by Ghee Beom Kim (Artist, Sydney, Australia)Digital Print, 12 x12 inches, 2009. “Gong Gan” employs a dodecahedron as its base form. I saw polyhedra as a form of tessellation on a sphere (spherical tessellation) and just by replacing each pentagon face on the dodecahedron with a module that tessellates within the pentagon and with the adjacent ones as well I was able to create this pleasant looking sculpture. "As for me my art is a channel through which I communicate with the higher entity. It’s a form of profound prayer on my part. Geometry has, so far, given me the best means to explore universe and reveal His secrets. By exploring into geometry from purely aesthetic perspective I can see clear relationship between the pure beauty of mathematics and God. My art is devoid of any human feelings and the focus is solely upon revealing unknown mathematical and geometrical order leading to visual essence. I create most of my artwork using Autocad and touch up in Photoshop afterward."  Ghee Beom Kim (Artist, Sydney, Australia) http://geometricarts.googlepages.com/home
May 10, 2010


"Nonsimple," by Goran Konjevod (Arizona State University, Tempe, and Livermore, CA)One uncut square of paper, 8" by 8" by 8", 2009. This piece uses intersecting pleats to create tension within the folded sheet and encourage threedimensionality. In addition to sharp points created by stretching pleats close to the four corners of the original sheet, it also features a joint where the centers of two opposite sides of the square are held together by a folded lock mechanism, creating the appearance of a nonsimply connected surface. "I fold (mostly flat and mostly paper) surfaces into interesting shapes. To do this, I use sequences of pleats to arrange layers so that they create tension that forces the material towards a curved surface. The simplest of these pieces are more appropriately described as discovered than created, but in others I build on the basic equilibrium shape to bend and curve the pleated surface further. The mathematics show up in many ways, but the two of my favorite are the combinatorics in the arrangement of pleats and the mathematical physics in understanding the forms preferred by the paper when folded."  Goran Konjevod (Arizona State University, Tempe, and Livermore, CA) http://organicorigami.com
May 10, 2010


"Perspicuous," by Matjuska Teja Krasek (Artist, Ljubljana, Slovenia)Digital print, 1995/2008. "Perspicuous" is a geometrical composition where a basic decagonal shape exhibits fivefold symmetry. The straight lines inside reveal the richness and interconnectedness of the geometrical shapes (pentagons, triangles, Penrose rhombs and kites), we can observe golden mean relations. Krasek’s theoretical, as well as practical, work is especially focused on symmetry as a linking concept between art and science, on filling a plane with geometrical shapes, especially those constituting Penrose tilings (rhombs, kites, and darts). The author's interest is focused on the shapes' inner relations, on the relations between the shapes and between them and a regular pentagon. The artworks among others illustrate certain properties, such as golden mean relations, selfsimilarity, fivefold symmetry, Fibonacci sequence, inward infinity, and perceptual ambiguity… Krasek’s work concentrates on melding art, science, mathematics and technology. She employs contemporary computer technology as well as classical painting techniques. Her artworks and articles are exhibited and published internationally. Krasek’s artworks are among the winners of the 2nd and the 3rd International NanoArt competition.  Matjuska Teja Krasek (Artist, Ljubljana, Slovenia) http://www.tejakrasek.com
May 10, 2010


"Ribbon weaving no. 1," by Christine Liu, Ergun Akleman, Qing Xing (Texas A&M University, College Station, TX)Digital print, 13” x 9”, 2009. This plainweaving model is automatically generated from the algorithm in the paper Cyclic plainweaving on polygonal mesh surfaces with graph rotation systems. Cycles of the plainwoven object are created from any manifoldmesh surface by twisting every edge of the manifold mesh and convert the plainweaving cycles to 3D thread structures. Users interactively control the shape of the threads and the size of gaps with a set of parameters creating a wide variety of unique plain weaving patterns. This generated weaving model has 16 identical closed cycles with user control over the width, displacement, and curvature of the weaving yarns. "Inspired by the detail of that which is supple, Christine Liu continually updates her mathematical techniques with a selfdriven craft refinement in classical training. Paint, sculpture and architectural drafting have all formulated a longstanding basis for an appropriate representation in her personal form of rational digital expression. Here, a timeless balance of scale, form and simulated vernacular methods are evident in the otherwise conventional mathematical art expression. Inspiration for the selected style and palette come from classic vibrant colored ribbon fabric and various types of ribbon weaving crafts. This piece is rendered and produced through Maya and Photoshop."  Christine Liu, Ergun Akleman, Qing Xing (Texas A&M University, College Station, TX)
May 10, 2010


"Jellyfish," by Kendra Lockman (Photographer, artist, and teacher, Oakland, CA)Digital print, 20" x 24" , 2009. Two fractals are combined to mimic the shape of the jellyfish used to create this image. The "head" fractal uses the famous dragon curve iteration. Here, the first iteration maps the negativesloped diagonal of the starting photograph to the lower edge, and also maps the same diagonal to the left edge. The "tail" fractal uses a double spiral iteration. The original photograph was taken at Monterey Bay Aquarium by the artist. "I began iterating photographs into fractals after watching a video on fractals, in which the point was made that whether you started with a single segment or a 2dimensional photograph, the resulting fractal was the same. I explored this on my own and learned that it can be more visually interesting to expose each step of the iteration. Photographs interact with themselves at each iteration level to reveal new shape and structure. Fractals are appealing for their seemingly complex structures which bloom from often simple iteration rules. I find that using photographs in the iterations can make the fractals much more captivating than if they were created with abstract geometry. I work intensely between Photoshop and The Geometer's Sketchpad to create these images."  Kendra Lockman (Photographer, artist, and teacher, Oakland, CA) kendralockmanphoto.com
May 10, 2010


"Elements," by Jeff Chyatte (Montgomery College and River Bend Studio at Water’s Edge, Washington DC)Painted High Carbon Steel, Impala Black Granite, Height 18” , Width 16” , Depth 16”, 2009. Fusing math, art and aesthetics, Elements incorporates mathematically significant dimensions that add an intriguing subtlety to its construction. Euclid studied the Golden Ratio 1 to 1.618 (Greek letter Phi) for its many interesting properties as described in his manuscript Elements. Those proportions were used by great artists and architects throughout the Renaissance in the form of the Golden Rectangle. The three intersecting planes that comprise Element’s core are Golden Rectangles. Their intersection creates 20 equilateral triangles, drawn from their points  an Icosahedron. Further, these rectangles use dimensions from the Fibonacci Sequence providing for a variety of mathematical implications.  Jeff Chyatte (Montgomery College and River Bend Studio at Water’s Edge, Washington DC)
May 10, 2010


"Natural Cycles," by Erik Demaine (Massachusetts Institute of Technology) and Martin Demaine (Massachusetts Institute of Technology, Cambridge, MA)Elephant hide paper, 9"x9"x9", 2009. The sculpture is a modular combination of three interacting pieces. Each piece is folded by hand from a circle of paper, using a compass to score the creases and cut out a central hole.This transformation of flat paper into swirling surfaces creates sculpture that feels alive. Paper folds itself into a natural equilibrium form depending on its creases. These equilibria are poorly understood, especially for curved creases. We are exploring what shapes are possible in this genre of selffolding origami, with applications to deployable structures, manufacturing, and selfassembly. "We explore many mediums, from sculpture to performance art, video, and magic. In our artwork we look for epiphanies, challenges, and often connections and understanding to help solve problems in mathematics."  Erik Demaine (Massachusetts Institute of Technology) http://erikdemaine.org/curved/NaturalCycles/.
May 10, 2010


"Arrangement (2)," by Adrian Dumitrescu (University of WisconsinMilwaukee)Digital print, 5" x 7", 2009. This arrangement was inspired by the following result from the theory of binary space partitions in computational geometry: There exists a set S of n disjoint axisparallel line segments with the property that any axisparallel binary space partition of S has size at least 2nO(n^2/3). The construction is based on a shifted double grid made of disjoint segments. "Art could come from anywhere. One just wants to be careful and not overlook it."  Adrian Dumitrescu (University of WisconsinMilwaukee) http://www.cs.uwm.edu/faculty/ad/
May 10, 2010


"Three Elements 453," by Doug Dunham (University of Minnesota Duluth)Color print,11” by 11”, 2007. This pattern contains lizards, fish, and bats representing the three classical elements, earth, water, and air. The pattern is inspired by M.C. Escher's Notebook Drawing Number 85. In this hyperbolic pattern, four blue lizards meet headtohead, five red fish meet headtohead, and three yellow bats meet headtohead, unlike Escher's pattern in which three of each animal meet headtohead. The symmetry group of this pattern is generated by reflections across the lines of bilateral symmetry of each of the animals; its symmetry group is the hyperbolic kaleidoscope group *543, in orbifold notation. "The goal of my art is to create repeating patterns in the hyperbolic plane. These patterns are drawn in the Poincare circle model of hyperbolic geometry, which has two useful properties: (1) it shows the entire hyperbolic plane in a finite area, and (2) it is conformal, i.e. angles have their Euclidean measure, so that copies of a motif retain their same approximate shape as they get smaller toward the bounding circle. Most of the patterns I create exhibit characteristics of Escher's patterns: they tile the plane without gaps or overlaps, and if colored, they are colored symmetrically and adhere to the mapcoloring principle that adjacent copies of the motif are different colors. My patterns are rendered by a color printer. Two challenges are to design appealing motifs and to write programs that facilitate such design and replicate the complete pattern."  Doug Dunham (University of Minnesota Duluth) http://www.d.umn.edu/~ddunham/.
May 10, 2010


"Julia," by Jeffrey Stewart Ely (Lewis and Clark College, Portland, OR)Photographic Paper, 20” X 20” , 2009. Julia sets are usually depicted twodimensionally, either flat or as textures on other surfaces which themselves may have little to do with the Julia set. Here, we iterate the complex variable relation, new s = s^2  1.25 thirteen times to produce a polynomial in the original variable, s, of degree 8192. Now consider the threedimensional surface, z = f(x,y) = s^8192+ ...  where s = x+iy and   denotes absolute value. This picture is the graph of (x,y, z) if z <= t and (x,y, t(t/z)^p) if z > t where t is a threshold value ~1.464 and p = (1/2)^13
"I am interested in applying computer graphical techniques to illuminate mathematical processes. Ideally, this can lead to a deeper understanding of the process, but even if no new insight is forthcoming, I am frequently mesmerized by the compelling beauty of the unusual shapes. I do not use 'canned' software. I wrote the code to first principles in the 'C' programming language. This particular image was constructed as a particle system made from 266 billion points and took 67 hours to compute."  Jeffrey Stewart Ely (Lewis and Clark College, Portland, OR)
May 10, 2010


"Selfsimilar Knot No. 1," by Robert Fathauer (Tessellations, Phoenix, AZ)Digital print, 13" x 16", 2009. A starting knot was created that possessed sufficient geometric regularity to allow iterative replacement of a portion of the knot with a scaled down copy of the knot. Three such iterations were carried out to obtain the knot shown here. In addition, the path of the strands was smoothed out so that strand in the final knot curves gracefully, as opposed to being a series of straight line segments that change angle abruptly. The knot was constructed using the program KnotPlot and then exported to PhotoShop for touching up.  Robert Fathauer (Tessellations, Phoenix, AZ) http://members.cox.net/tessellations/index.html
Robert Fathauer makes limitededition prints inspired by tiling, fractals, and knots. He employs mathematics in his art to express his fascination with certain aspects of our world, such as symmetry, complexity, chaos, and infinity. His artworks are created on a Macintosh computer.
May 10, 2010


"Coiled Figure Eight," by Nat Friedman (University at Albany, NY)3/8“ copper tubing, wood dowel, gorilla glue, 13" x 10" x 9", 2008. Copper tubing comes in a coil so is naturally “rounded”. A knot diagram is coiled if the diagram can be traced in a constant clockwise direction. A coiled diagram is also referred to as being in a braid configuration. The typical diagram of a figure eight knot in a knot table is not coiled. The diagram of the figure eight knot shown above is coiled. A coiled diagram is suitable for forming a corresponding copper tubing knot since the natural rounded curvature of the tubing can be maintained as the knot is formed. I form copper tubing knots by hand. One must be careful not to "crink" the tubing. The ends are joined using a wooden dowel and gorilla glue. Knots are ideal mathematical forms for sculptures since a knot is completely threedimensional with no preferred top, bottom, front, or back and can look completely different from different viewpoints.  Nat Friedman (University at Albany, NY) www.isama.org
May 10, 2010


"Fire, Water, Soil and Air," by Mehrdad Garousi (Artist and photographer, Hamadan, Iran)Digital art print, 21" x 24", 2009. This complex 3D object consists of four identical but differently colored separated tapelike shapes that have been interwoven with each other. The result of this arrangement is a sixpointed shape with some kind of unusual symmetry. Each of four separated constitutive parts and also the shapes at all six arms of the final complete form are exactly the same, but their different arrangement is the reason for the final unusual symmetry. It’s a long time that I have worked with traditional handson art, and I feel much interest in the probabilities and capacities of the new generation of computer aided or generated arts. However, the main field in which I am being drowned is fractal art. Recently, I have been attracted strongly by mathematical sculpting, especially by means of wonderful software such as Topmod. These kinds of software considerably ease the imagination of complex mathematical shapes, and playing with them can be done without any limitation other than the mind. Initially, I create my basic shapes in software like Topmod and do arrangements, adjustments, texturings, and final renders as final realistic sculptures in render engines like Modo. I hope to have the luck to make some of them in the real world in large scale."  Mehrdad Garousi (Artist and photographer, Hamadan, Iran) http://mehrdadart.deviantart.com
May 10, 2010


"Cuboctahedral Symmetries to Travel," by S. Louise Gould (Connecticut State University, New Britain)Original digitized machine stitched patterns on cotton reinforced by Timtex, Five moveable pieces, collapsible each 3” × 3” ×3”, 2009. Conway enumerates the 7 spherical symmetries compatible with the uniform polyhedra in “The Symmetries of Things.” Using the symmetry types these are 332, *332, 432, 3*2, *432, 532 and *532. The simple cuboctahedron exhibits the first 5 of the symmetry patterns: *432 has 48 symmetries (the full group of symmetries), *332, 432 and 3*2 have 24 (the three subgroups of index 2=48/24) while 332 has only 12 (the ones of index 4=48/12). Coloring the faces of the models for the Archimedean solids is a natural extension of my recent work with popup polyhedra. "My mathematical art grows out of my experiences with my students and my explorations of mathematics, textiles, paper, and technology. I enjoy working with computer controlled machines such as the computerized embroidery sewing machine and the Craft Robo (plotter cutter) as well as traditional looms and knitting machines."  S. Louise Gould (Connecticut State University, New Britain)
May 10, 2010


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