also a bug in formulas, ie i can type red=sqrt((axax)+(ayay)+(azaz)); and it works, however if i do this=sqrt((axax)+(ayay)+(azaz)); red=this; then red seems to be always be 0, so guess its a bug a couple threads down has a formula from me seems easy values work, like this=1; red=this; works, but still, should calculate the longer ones