Grante, it is a large calculator. But for what it can do, that isn't problem. This graphing calculator actually can match up to the TI-89 suprising enough. It can do integrals, calculus, differentiation, statistics, finances, conics, dynamic functions, it even has a tutor inside for basic algebra. This list goes on and on especially when you consider the add on functions which you can download from the internet. The interface is also very easy to handle and intuitive so that you can figure out what to do an how it works. If there is a problem, then it can also explain to you possible sources of error with your syntax. I have used this for years and have not needed to replace it for any reason, it is very durable and will last as long as you need it to.