Earlier this year, [Dan Maloney] went inside mechanical calculators. Being the practical sort, [Dan] jumped right into the Pascaline invented by Blaise Pascal. It couldn’t multiply or divide. He then ...

Maple Calculator, a free mobile app that makes it easy to enter, solve, and visualize mathematical problems from algebra, precalculus, calculus, linear algebra, and differential equations, now offers ...

Quick - what's the square root of 2? What do you mean you don't have a calculator? Well, you can start guessing, right? So let's work this through. You know you have an upper bound - it has to be less ...

Most people learned math as children by writing out problems on paper. This calculator app lets you do just that, but also lets you perform complex computations, all by writing numbers and symbols on ...

When I took calculus at night school with three nerdy high school friends, graphing calculators did not exist. Johns Hopkins University mathematics professor Stephen Wilson is happy for me. He says ...