ISFORMULA(reference)
=ISFORMULA(A1)
The ISFORMULA function can be used to check if a particular cell contains a formula. For example, this returns TRUE if cell A1 contains a formula.
=ISFORMULA(A1="=2+2")
The function can also be used to check if a cell contains a specific formula. For example, this would return TRUE if cell A1 contains the formula "=2+2".
=ISFORMULA(A1="{=SUM(A2:A10)}")
The ISFORMULA function can also be used to check if a cell contains an array formula. For example, this would return TRUE if cell A1 contains the array formula "{=SUM(A2:A10)}".
=ISFORMULA("Hello World")
The ISFORMULA function can also be used to check if a cell contains a text string. For example, this would return FALSE because the argument is the text string "Hello World".
The ISFORMULA function is a useful tool that quickly checks if a cell contains a formula. It can be used to verify that formulas are properly entered and functioning.