| A | B |
|---|
| Zoom, All | To resize the computer viewing area to include everything that has ben drawn anywhere on that file. |
| Zoom, Previous | To return to the last zoomed view. |
| Zoom, Window | To focus on a selected area of a drawing by enclosing it in a box. |
| Undo | To remove the last command |
| Redo | To restore a command that was erased. |
| Grid | A uniform pattern of dots on the screen that is not shown on the plot. |
| Limits | A CAD feature that describes the size of your working space. |
| Block | A CAD command that allows for a group of lines to be saved to be inserted on a drawing. |
| Sketch | Allows you to drawn freehand in a CAD drawing. |
| @3<90 | A relative polar command used to draw 3 units from the last selected point straight up. |
| Snap | A CAD feature that makes crosshairs "jump" to an even increment. |
| Absolute | The coordinate system that starts at 0,0,0 9usually the lower left corner) |
| Text | The CAD command that allows you to put words on a drawing. |
| Draw commands | Line, Circle, Arc |
| Ortho | Makes line either 0 or 90 degrees. |
| OSNAP | Makes entities pop to places such as: endpoints, intersections, midpoint and perpendicular. |
| Vertical | Cartesian Y value |
| Horizonal | Cartesian X value |
| @4<270 | A relative polar command used to draw 4 units from selected point straight down. |
| @4<180 | A relative polar command used to draw 4 units from the last selected point to the left. |
