Texas Instruments may forever have an iron grip on the K-12 graphing industry, but Google just rolled out its own little graphing tool in case you've lost your TI-83 — you can now graph mathematical functions by entering them directly into the Google search box. Users can type in a range of trigonometric, exponential, and logarithmic single variable functions, see them plotted out on the search result page, and zoom and pan to examine them more closely. It's a simple yet elegant addition to Google's core product, and one that you should definitely check out — if you haven't plotted anything since your high school days, it's sure to conjure up some memories.