ISLOGICAL

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

ISLOGICAL(cellreference)

ISLOGICAL(value)

ISLOGICAL(expression)

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

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.

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

ISLOGICAL(B7)

ISLOGICAL(R4C8)

ISLOGICAL(true) gives a result TRUE

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

This function is available in product version 1.0 or later.