Texas Instruments NS/CLM/1L1/B User Guide - Page 89

Object behavior in different views When you create an object in the graph area, it is called an analytic object, and all points of the object reside on the graph plane. When you change the axes scale, you automatically affect the appearance of the object. If you calculate a value associated with the object such as the area, only generic units are assigned (u for unit). These objects remain associated with the coordinate plane until you delete them or redefine them to the plane geometry area. When working with a modeling view work area, you cannot move an analytic object onto the plane geometry area. When you create an object in the plane geometry area, it is a geometric object. These objects can have an assigned scale, such as miles or centimeters, instead of u for units. You can lock a point, such as one vertex of a triangle, on the work area, but since the object is not tied to a coordinate plane, you cannot display coordinates for that vertex. When working with a modeling view work area, you can move a geometric object into the graphing work area. The object remains a geometric object, and is not associated with the axes. Summary of differences Feature Aspect Ratio Units of Measure Area Graph Type Graph Area Plane Geometry Area Adjustable; initially 1:1 Always 1:1 (static) Generic (displayed as u) User-defined (per scale) Cartesian (default) or Polar Euclidian Using Graphs & Geometry 81