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plot3d {x((x + i y)) = cos((x + i y)), y((x + i y)) = sin((x + i y)), z((x + i y)) = (x + i y)}
plot3d {x((x + i y)) = cos((x + i y)), y((x + i y)) = sin((x + i y)), z((x + i y)) = (x + i y)}
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