This function tests whether a value, an expression, or contents of a referenced cell is a logical (Boolean) value.

Syntax

ISLOGICAL(cellreference)

ISLOGICAL(value)

ISLOGICAL(expression)

Arguments

Specify a cell reference, a numeric or text value, or an expression for the argument.

Remarks

This function returns FALSE if the value refers to an empty cell or to no data.

Use this function to test the contents of a cell, a numeric or text value directly, or a function or expression.

Data Types

Accepts any data type for an argument. Returns Boolean (TRUE or FALSE) data.

Examples

ISLOGICAL(B7)

ISLOGICAL(R4C8)

ISLOGICAL(true) gives a result TRUE

ISLOGICAL(OR(B7,B8)) gives a result TRUE