This Amazing, Light-Bending Metamaterial Can Do Calculus

Source: http://gizmodo.com/this-amazing-light-bending-metamaterial-can-do-calculu-1498877144

When we last saw metamaterials, they were helping us create real-life invisibility cloaks. But, in even more exciting news for true nerds, light-bending metamaterial can also do math. Not just simple math, but calculus.