nan

How to distinguish different types of NaN float in Python

I'm writing Python 2.6 code that interfaces with NI TestStand 4.2 via COM in Windows. I want to make a "NAN" value for a variable, but if I pass it float('nan'), TestStand displays it as IND. Apparently TestStand distinguishes between floating point "IND" and "NAN" values. According to TestStand help: IND corresponds to Signaling NaN ...

JavaScript simple "error-handling" by replacing NaN with conditional

I was wondering how I can detect false input type and instead of presenting the user with NaN, have a logical piece of information be displayed. Here is my code: <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Quadratic Root Finder</title> <script> window.onload = function() { document.getE...

C++ can int be NaN?

Hi, can I set an int to NaN? if yes then how can I check if an int is NaN or not? ...

Comparing parseInt to NaN in Actionscript 3

The AS3 documentation states that if you pass in a string to parseInt that is not a number it will return NaN. However, when I try to compare to NaN the compiler gives me the following error: Warning: 1098: Illogical comparison with NaN. This statement always evaluates to false. The statement is actually true. Comparing to NaN will al...

how can we compare whether the result of an arithmetic operation is NaN or infinity..??

double SampleInterval = (PopulationValue - valueOfSignItems) / (SampleSize - noOfSignItems); if my divisor = 0, sampleInterval wil bcom infinity and it will be = NaN if both dividend and divisor are = 0 i need to do my code when SampleInterval = infinity and in another context when SampleInterval = NaN. How it is possible..?? can any ...