Where to start this device feels more like a portable computer in your hands, what with the computation saving files, high resolution display, fast calculation speed, customization potential, touch-pad, and so much more. Although I have not used the included software which allows seamless communication between this calculator and your P.C. or MAC device, the tutorial provided with this calculator shows great functionality in that regard. You can easily graph and develop equations directly from pictures: such as the curve of an arc, the velocity of a fountain's stream, and so much more I have yet to realize. Further, there are extra devices you can purchase for this calculator that interprets data in real time, such as the temperature of a system, the position of a point in space (which also gives you velocity and acceleration with the easy to use, built-in derivative equations) and, again, so much more that has yet to be realized.The only potential downside of this device is that there is a lot to learn and much more to master in order to use this device at its full potential, but when such a time comes around, I am sure that this calculator will make the mathematical part of my life, from now into the far future, exponentially easier.