Looking for a challenging and stimulating activity? Try solving a pattern-based puzzle posted on Instagram by Optical Illusions. The puzzle presents three patterns and asks you to predict the next ...

Remember the graph paper you used at school, the kind that's covered with tiny squares? It's the perfect illustration of what mathematicians call a 'periodic tiling of space', with shapes covering an ...

The total area of a compound shape is found by adding up the areas of the rectangles that have created the whole shape. This may be done in more than one way. The calculation may use a subtraction of ...

A new algorithm generates practical paper-folding patterns to produce any 3-D structure. In a 1999 paper, Erik Demaine -- now an MIT professor of electrical engineering and computer science, but then ...