Documentation/How Tos/Calc: ISBLANK function

ISBLANK

Tests if the cell is blank (empty).

Syntax:

ISBLANK(cell)

Returns TRUE if cell is a blank (empty) cell, and FALSE otherwise. Cells containing a formula or a error return FALSE.

Example:

ISBLANK(D2)

returns TRUE if D2 is an empty cell, and FALSE if D2 contains a number, text, TRUE, FALSE, a formula or an error.