Ljubo wrote:
Function Not A Number/Path/Refnum? works in case "zero divided by zero".
Technically, that function will operate in any case when the value is NaN.
Ljubo wrote:
I would like to repeat: I don't want to check inputs one by one. My example is simplified to illustrate the problem. Formula can be much more complex with many inputs.
In fact I'm interested in catching all the errors which can occur during mathematical operations. C++ or Delphi for example, can report errors always when you try to execute an illegal math operation. And they have a mechanism to catch NaN, Inf ... (see Delphi code below)
b := 0;
c := 0;
try
a := b / c;
except
// this part of code is executed only if division a/b is invalid
a := 0;
end;
Is this possible in LabVIEW too ?
When you say one-by-one are you referring to an array? If so, that function is polymorphic so you can wire an array to it.
However, it sounds, based on your description, that you are trying to check *all* possible calculations being performed in LabVIEW. I'm not sure I understand the practicality of this, as 99% of calculations are not likely to create NaN/Inf values. It is usually better to identify specific parts of code in which such kinds of results can happen and check for them. As far as LabVIEW is concerned, it has no automatic way of stopping the code and reporting such errors, unless you consider conditional probes, but those only work in the development environment.
