NaN

Creates an Not-a-Number

Syntax

• NaN
• nan
• NaN(n)
• NaN(n, m)

Input argument

• n - a variable: n-by-n matrix
• m - a variable: n-by-m matrix

Description

NaN returns the IEEE symbol NaN (Not a Number).

NaN is the result of operations which do not produce a well defined numerical result.

Beware, you must never compare NaN with NaN, in this case, please use isnan.

Examples

NaN

3 + NaN

NaN != NaN
isnan(NaN)

See also

isnan.

History

Author

Allan CORNET