Prior to iOS 18, if you wanted to figure out how to split a bill with your texting group from afar, you'd have to use your calculator app or Spotlight and then switch back to Messages. With iOS 18 you ...

To solve an equation, the value of the unknown variable needs to be found. It can be found by performing the same operation on each side of the equation until the value for \(x\) is known.

It is seen as a great breakthrough in the research field of singular stochastic partial differential equations. "Up to then," Tempelmayr explains, "it was something of a mystery how to solve these ...