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This document derives an equation for a periodically equilongitudinal conical helicoid, where each revolution of the helical space curve has equal arc length. It begins with the projection of the helical curve onto a plane, then derives an expression for the radius as a function of angle. This is integrated to obtain the z-coordinate as a function of radius, yielding the final equation for the helical space curve.
- Author
- Al Johnston
- Language
- EN