So I've put this into Nexus:



Works until the variable cels is a negative number. Then it doesn't do the division.

Any ideas why?

Maybe you need parenthesises? Iunno, don't use nexus.

Why not have another variable that is a check on whether it is negative (something like it is 1 if positive, 0 if negative, or whatever kind of flag you want). Then just make sure that cels is multiplied by -1 if it is negative and the flag is set appropriately.

Remultiply by -1 after the division if the flag is set.

Doesn't explain why, but would give a way to work around it.

So how about this?

#math celspro $1-32
#math oneeight 9/5
#IF $celspro < 0 {
#math celspro $celspro * -1
#math cels $celspro/$oneeight
#ECHO_ In real temperature, it is now $cels C.
} else {
#math cels $celspro/$oneeight
#ECHO_ In real temperature, it is now $cels C.
}

Lemme give it a shot, after learning and let you know results

The most likely reason it doesn't work is that Nexus is interpreting the negative sign as a non-numeric character. Hard to say without seeing your trigger lines or pushing a few debug echos into the script.

Also, why set a variable for 1.8? And are you sure that $oneeight is actually 1.8 and not 1? (Honest question there, don't use Nexus.)

EDIT: And looking over your script, I can guarantee that that won't fix the problem. Here's hoping you catch this before trying and beating your head on your desk.

EDITEDIT:

Ok, so, quicker for me to go check than wait for you to go check.

Trigger: You feel the temperature around you to be about {d} F.

#math cels ($1 - 32) * 5 / 9
#echo $cels


Trigger: You feel the temperature around you to be about -{d} F.

#math cels ($1 - 32) * -5 / 9
#echo $cels

Now I need to go wash the Nexus off my hands.

because I tried dividing by 1.8 and it didn't work...

so now I have to do it manually

Problem is when it is 0F

It works for that.

I don't think I've ever used #math. You should just be able to #set celciustemp = (($fahrenheittemp - 32) / 1.8) , although it's been a while since I had to do that, so the syntax might be slightly wrong.