eprints.qut.edu.au · 2010. 6. 9. · symmetnc conicoid. A conicoid with axis of revolution along...
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eprints.qut.edu.au · 2010. 6. 9. · symmetnc conicoid. A conicoid with axis of revolution along the Z axis (and coin- cident with the optic axis) may be de. scribed by the equation