If you are a STEM student, you probably have to do a LOT of calculations and graphing. Doing these things with pen and paper can help you a better grasp of the concept and that's what you should probably do when learning the concept for the first time. But if you're just using the concept as a tool to do something else, often just using a calculator is a better idea to get it … [Read more...] about Here are the Best Scientific Calculator Apps