But if you can’t justify a $150 calculator, there are some cheap and even free options out there to get the experience. To start with, HP has a free app that runs on Windows or Mac that works ...

It’s not a full scientific calculator, but it does have enough functions to go beyond what you normally find in basic calculators. The free version of the app contains advertising. It’s a good ...

Scientific calculators were invaluable to most of us ... particularly at the low, low price of free. This is one calculator that CASIO will have to keep their nose out of!

Many are calculators, including “a four-function, scientific, and graphing calculator.” The calculators are free to the ...