 the segment A-B follows the motion. This is specially useful when used with the <B>proj </B>button (we're going to see that button right now). Note that you can ask A-B-C-D if A, B, C and D are displayed points. You will then have defined the three dynamic segments A-B, B-C and C-D.<BR><BR>
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<A NAME="options">The <B>grid </B>button lets you toggle between four types of axes representations: no axes; only axes; axes and broad grid (units); axes and precise grid (0.1 units)<BR></A><BR><BR><BR><B