Can you suggest me a program (app) to make a draw of a 3D pyramid, as shown in Figure 2 and Figure 3 in this paper (paper)? I need to make something similar to this, and I am not sure how they made it. I am sure that some of you here might have used those kinds of app very often, so went here to ask for advice. Thanks.
closed as off topic by Peter Flom, Andy W, chl♦ Oct 28 '12 at 13:24
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