exponential notation

And it was he who introduced the now familiar exponential notation, with x2 meaning x x x, x3 meaning x x x x x and so on.

Though he didn’t have exponential notation, he invented something comparable, and his calculations were essentially equivalent to the following.

During math period in Mr. D’Alconzo’s class, he ushered a group of students, including a boy from Peru and one from El Salvador, to the front of the room for a lesson on exponential notation.

More concretely, a↑b is the usual exponential notation, ab=a×a×a.., for a total of copies of a multiplied together.

He pioneered the standard exponential notation for cubes and higher powers of numbers.