Why reach for a bland, commercially available calculator when you be using a model that employs RPN (Reverse Polish Notation) in its calculations and be a custom build all at the same time? The kids ...

The beloved HP-35, one of the first scientific calculators able to “perform transcendental functions such as trigonometric, logarithmic and exponential functions” with an LED display just received an ...

While we might have started out using our fingers and toes to count, humanity has been busy designing machines to help with calculations for hundreds of years. From early counting devices to modern ...

As Micky Mouse (1928–) once famously said: “Arithmetic is being able to count up to twenty without taking off your shoes.” As Micky Mouse (1928–) once famously said: “Arithmetic is being able to count ...

The best rummage sale purchase I ever made was a piece of hardware that used Reverse Polish Notation. I know what you’re thinking… RPN sounds like a sales gimmick and I got taken for a fool. But I ...

As your kids get older, that school supply list may get shorter, but not necessarily cheaper. One item that can cause sticker shock for parents of middle and high school students is a specialized ...

Students learn how to express numbers in correct scientific notation. Scientific Notations and Conversions: Students learn how to express numbers in correct scientific notation and to convert from ...