How "should" an isosurface respond when there is an undefined region of
space?

I just ran something like
        function{noise3d(x^0.5/constant , y/constant , z/constant}
.  The result is symmetric about the x-axis!

Is this an algorithm mistake?

Did pov just uncover a great secret of mathematics: all this fuss over
the square root of negative numbers was a tempest in a teapot??

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