Wolfram Alpha is the only calculator you need and it will get you through college, just like it did for me! Wolfram Alpha has evolved massively over the years as it now covers a lot more than just mathematics. You can now explore Science & Technology, Society & Culture, and Everyday Life. For each problem you give it, you will receive a step-by-step solution for basic arithmetic to geometry to differential equations. And now, you can even get break downs of the nutritional facts of different foods. Or exploring the human anatomy. What about getting information about a specific movie like cast, academy awards and box office performance.