isnan

isnan

isnan — check for "Not a Number" entries

Calling sequence

r=isnan(x)

Parameters

`x`	: real or complex vector or matrix r : boolean vector or matrix

Description

isnan(x) returns a boolean vector or matrix which contains true entries corresponding with "Not a Number" x entries and false entries corresponding with regular x entries.

Examples



isnan([1 0.01 -%nan %inf-%inf])

See also

isinf