I have run into a roadblock on making formulas in equation editor, with multiplication and division. I cannot square a number like this, D1^2. I get the dimensionality not valid. I cannot do this, D1*/D1. I cannot do this, (D1)*(D1). Cannot do this, (D1*1)*(D1*1). I cannot do this, D1*D2. And so on. But, what I can do is more complicated formulas like this, (((CH_ArcRADIUS*2)*pi)/360)*(CH_ArcANGLE/.01745329252) that ends up just fine. No matter how I try to write a simple formula like Chord/Height, I end up with a garbage result.