The ISLOGICAL function is one of the information functions. It is used to check for a logical value (TRUE or FALSE). If the cell contains a logical value, the function returns TRUE, otherwise the function returns FALSE.
The ISLOGICAL function syntax is:
where value is a value to test entered manually or included into the cell you make reference to.
To apply the ISLOGICAL function,
- select the cell where you wish to display the result,
- click the Insert function icon situated at the top toolbar,
or right-click within a selected cell and select the Insert Function option from the menu,
or click the icon situated at the formula bar,
- select the Information function group from the list,
- click the ISLOGICAL function,
- enter the required argument,
- press the Enter button.
The result will be displayed in the selected cell.
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