If you need a little help with your math homework, OneNote has picked up a relatively small, but pretty useful update on Windows 10. Initially launched as a way to give you tips on solving difficult math equations lat year, OneNote's Ink math assistant can now draw graphs of your equations for a little extra help.

Getting started with graphing is a fairly simple process. Microsoft explains:

- Begin by writing your equation. For example: y=x+3 or y=sin(x)+cos(2x).
- Next, use Lasso tool to select the equation and then, on the Draw tab, click the Math button.
- From the drop-down menu in Math pane, select the option to Graph in 2D. You can play with the interactive graph of your equation—use a single finger to move the graph position or two fingers to change the zoom level.
- Use + and – buttons to change the values of the parameters in your equation.
- Finally, click the Insert on Page button to add a screenshot of the graph to your page.

This feature has been in testing with Insiders for a while, so it's good to see it roll out to everyone. If you want to try it out yourself, Microsoft says that the feature is available in OneNote for Windows 10 for Office 365 subscribers now.