math domain error

[dominic-ks]

Hello,

Firstly thank you for the work you have done here, very useful.

I ran into one issue here which was on various lines where math.pow is used. I'm not a python pro, but it seemed to me that using this method to get the power of a number using a decimal throws the above error and swapping this for the ** method resolves this.

e.g. line 69 is currently:

• return self.PARA * math.pow((self.get_resistance()/ self.RZERO), -self.PARB)

And I changed this to:

• return self.PARA * (self.get_resistance()/ self.RZERO)**-self.PARB

I believe this returns the intended value, but of course if this is not correct welcome your comments!