let's take word 2016 for example. Create a new Word document, and then switch to the Insert tab, click Formula in the upper-right corner, and then select Ink Formula from the Drop-down menu.
Figure 1 Selecting the Ink formula
After you open the ink formula, pop the Formula input window, press the left mouse button and do the handwriting on the yellow area. Do not worry about their handwriting is not good-looking, ink formula recognition ability is very strong. But there's a little bit of skill when it comes to writing, the first is to identify the wrong after not to change, continue to write back, it will be automatically corrected; if it is more than just come, you can choose the second "clear" icon tool to erase the rewrite; there is an office that is through "selection and correction" Tool to select the symbol that identifies the error, a menu box will pop up to select the correct symbol.
Figure 2 Ink formulas can easily identify irregular writing