How do you find the boundaries of a volume defined by

to compute

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- Feb 13th 2010, 10:03 AMqweslNeed help with the boundaries of a 3D solid
How do you find the boundaries of a volume defined by

to compute - Feb 13th 2010, 10:57 AMTKHunny
Various ways. Projection is one such way.

Simply eliminate all the 'z's and see wht it looks like from the point of view of the x-y plane.

Do the same for x-z and y-z.

Are you sure you must use dxdydz? Often there is one way that is easier than another. Maybe dydzdx would be more straight-forward. You must keep your eyes open.

Exploit symmetries and redundancies. I don't see much in this one except that the first and third constraints are a little odd. If z > 0, does the third one mean anything? Subtract 3z in the first and compare it to the third. What does that mean? - Feb 13th 2010, 12:46 PMqwesl