Calculators are simple tool for the classroom and beyond. Here are our top picks for students and accountants alike.

SAN JOSE, Calif. -- When retired math teacher Roberta Koss first picked up a graphing calculator at a bookstore 12 years ago, it was a curiosity--not yet mature enough for use in the classroom.

Tired of juggling between Apple Notes and Calculator? A math feature in iOS 18 lets you solve equations instantly with just a quick settings tweak.

The ability to solve polynomials and simultaneous equations has long made the scientific calculator an indispensable tool for students and professionals.