Karatsuba’s divide-and-conquer multiplication algorithm takes advantage of this saving. Consider a multiplication algorithm that parallels the way multiplication of complex numbers works.

COVID might be fought efficiently with fewer shutdowns by restricting activities only in a particular area with a population up to 200,000 when its case rate rises above a chosen threshold.

With hundreds of research projects active at any one time, Lubrizol Corp. needed a consistent way to prioritize its mix of projects. The Wickliffe, Ohio, company met that challenge by applying ...

Watson’s approach is to divide and conquer. “You have to look at the data from so many different perspectives and combine the [results], because you can never rely on there being only one way ...

Still, be sure to also teach students the common denominator approach, since they don’t need to flip and multiply fractions in order to divide and conquer them.