I'm attempting to use Revit's Log function in a formula, and I'm not getting results that agree with Excel. We've tried two ways, and I admit to not being a math genius, and never really liking Logs in the first place. We've tried the two versions below:
= (16.649*(log(<parameter name>)/(log(exp(1))))-15.222)
= (16.649 * log(<parameter name>) - 15.222)
In both cases when using a parameter value of 30 Revit returns a value around 10.4 or something, in Excel we get a value of about 41.4 which we know to be accurate. I think I'm misunderstanding something about how Revit processes logs? Can anyone help?