Lawyers often need to use calculators. For some tasks, the calculator that comes with your computer is fine. On my Macbook Pro, a calculator pops up when I click on the three lines in the upper right corner of the screen. But sometimes, you need a scientific calculator. For those times, consider downloading CalcMadeEasyFree. It has a 4.5 star rating from 176 reviews (at the time I published this article). What I find particularly handy is that the program automatically keeps notes of what you have been calculating. This is a program for Mac computers; you will find it in the App Store.