I have been searching for a while now and all searches lead to Google Docs, not Google Sheets. So basically what I'm looking for is similar to the insert equation function as in Excel where you can insert Mathematical Equations and symbols etc... I have an excel file that I opened using the Google Sheets but when I did, the cells where the equations were placed are left blank. All the other things are as it was like the original except the mathematical equations. I'm thinking of just turning them to images then add them as an image but I'm, wondering if there's a way I would be able to include them like in Excel.
This is what I meant by insert mathematical equation.