173Chapter 7 Calculation, Analysis, and Output of Inspection Results7.2.3 Creating a Numeric CalaulationAn example of calculating the length of an object by subtracting the X coordinate of the edge which was detectedfirst by the Gray Edge checker saved as checker No. 2 from the X coordinate of the edge which was detected firstby the Gray Edge checker saved as checker No.1 is described below.1. Highlight "TOOL" > "Calcu. -Stat.-Output" from the menu bar.The subwindow for calculation, statistics and output setting is displayed.2. Highlight the Num. Calcu. tab.3. Highlight "CA01".The program cell is highlighted.4. Check to make sure that the cursor is in the Program column and press the ENTER key.The subwindow for program setting is displayed.The preset numeric calculations are shownin the Program area.The numeric calculations are shown in theupper area and a table of the incorporablesymbols is displayed in the lower area.5. Press the ENTER key.The cursor moves to the table.6. Highlight "CHECKER”.The list of checkers is displayed.7. Select “1” (GRAY EDGE) in the checker list.The subwindow to select an object number is displayed.