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	You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
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This image is a derivative work of the following images:

• File:Frenet_trihedron.svg licensed with Cc-by-sa-2.5,2.0,1.0, Cc-by-sa-3.0-migrated, GFDL
  • 2006-08-31T21:21:10Z Luca Antonelli 520x310 (10513 Bytes) {{Information| |Description=Il triedro di Frenet di un'elica: sono rappresentati i tre versori tangente (blu), normale (verde) e binormale (rosso). The Frenet trihedron of a helix: the three versors, tangent (blue), normal (

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