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A straight line is a straight line.
A "free line" may be anything: A curve, a wave-form or a zig-zag line. And a straight line as well. Conclusion: The free line is the mother of all lines.

This free line may be open or closed - and it is flexible; Demonstrated here with the elastic. it can be any shape, a circle, a rectangle etc.

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last update: 11/21/02011 14:35

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