CG


center of gravity

var

CG

CG(expr)

         Returns the center of gravity of 3D line expr.
Example: CG[1,12]; returns (5.5 6.5 7.5)

CG var

CG var("nn")

         Returns the center of gravity of the variable name nn considered 3D line.
Example: x=[1,12];CG var("x") returns (5.5 6.5 7.5)