IsNan(Value: Double): Boolean;
Value. The checked real value.
The IsNaN method checks if the value of the variable is equal to a fixed non-numeric value.
Available values:
True. Variable value is equivalent to a fixed non-numeric value.
False. Variable value is not equivalent to a fixed non-numeric value.
NOTE. The fixed non-numeric value is the result of dividing zero by zero. This value is returned if result of an operation is void.
See also: