Click Insert tab-Formula-Insert a new formula.

As shown in figure 1, is there? β; The "derivative symbol" has an estimation symbol and an average symbol, which are combined according to the cursor prompt, and then the formula can be saved (as shown in Figure 2).

Excel cells cannot directly input complex mathematical formulas, but there are two compromise methods:

1, text box, paste symbols from any position and combine them.

2. Paste the word formula above to form a picture (don't paste it when editing or inserting, just click any cell to paste it).