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Res 2.2.4 The rlnspace ond losspace Functions provideotherhandytoolsto generate The iinspacre and logspace functions vectors of points.The 1 inspace functiongenerates row vectorofequally spaced points.It spaced a has the form I i n s p a c e (x l . x 2 , n ) which generates points betweenxl and x2. For example n '> linspace(0,1,6) 0 0.2000 0.4000 0.6000 o.BOOO 1.0000

3. Enter the ERASE command by picking the Erase button from the Modify panel on the Ribbon or by entering E at the keyboard. The AutoCAD prompt changes to Select objects. Notice that the crosshairs have changed to a small box called the pickbox. The pickbox is used to pick objects. At this point, you can also create a window to select points. 4. Pick a point anywhere to the lower left of the triangle. 5. Move the pointing device to the right and notice that a blue box forms. This box de nes the selection window. 6. Move the pointing device so that the triangle ts completely inside the window and pick a point. The objects to be erased are highlighted with broken lines, as shown in Fig. 6-2. The highlighted objects make up the selection set.

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Next, set up your Activity s main class outline. There are a number of variables that you need to define for use throughout the LocationEditor:

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10. In the Code editor, create a Load event procedure for the form and write the following code in it:

8. Pick the Cancel button in the dialog box and press ENTER to terminate the command. 9. Close the Layer Properties Manager palette. 10. Erase both circles and save your work, but do not close the drawing.