How to apply the 'FORECAST' function in spreadsheet?

MarcAI

Prominent
Mar 8, 2017
7
0
510
Hello,

I'm attempting to apply the 'FORECAST' function to forecast a row of numbers 0 to 3. I selected a row of numbers to forecast. I then receive the following prompt:

The formula you entered contains errors. If you do not wish to use a formula, insert a single quotation-mark before your text.

What are the steps to applying the 'FORECAST' function?

Thank-you