Because 0.082 != 0.08

Because, I haven't learnt this formula yet!

Ok, then when I say 0.08*temp, it doesn't work!
Am I doing something wrong, or is there more to it?

That's its numeric value with the units used in the formula, yes.

So, is R 0.082?

The gas constant (R) has value of 0.082dm3.atm.K-1.mol-1

What is R?

Hello @skskiran,

I ran into the same issue using atan function.
Try with atan2.

nope, your code is wrong.

material7 or material8 must be selected(at least one, or both)