In this composite photograph, a hidden portrait under the Vincent van Gogh painting ''Patch of Grass'' from 1887, is seen. In this composite photograph, a hidden portrait under the Vincent van Gogh ...

Cathy O’Neil believes there is a dark side to numbers. A mathematician by training, she earned her doctorate at Harvard and went on to become a tenure-track professor at Barnard College. In 2007, ...

One of the most classic algorithmic problems deals with calculating the shortest path between two points. A more complicated variant of the problem is when the route traverses a changing network - ...

People tend to obsess over making computer software faster. You can, of course, just crank up the clock speed and add more processors, but often the most powerful way to make something faster is to ...