[SOLVED] How to handle NaN in GFortran?

AlexBB · 11-24-2014, 06:40 PM

Hi there. I have Ubuntu VM and I run GFortran in it. And in this particular task my calculations give me quite a few NaN and I want to make sure they are thrown by the wayside. So far nothing I tried worked, e.g. if (res.eq.NaN) then ... does not work, etc. How can it be done?

Thanks, - A.

suicidaleggroll · 11-24-2014, 07:12 PM

You can use "if (res .ne. res)" to test if it's a NaN.

AlexBB · 11-25-2014, 12:14 PM

Exactly! This is what I did eventually. Found it on the web. Suicidaleggroll, stick around for further problems. :-) Thanks. A.