| Deletions are marked like this. | Additions are marked like this. | 
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| see [http://mathworld.wolfram.com/Jacobian.html Jacobian] | see   * [http://mathworld.wolfram.com/Jacobian.html Jacobian] * [wiki:WikiPedia/Jacobian Jacobian] | 
see
- [http://mathworld.wolfram.com/Jacobian.html Jacobian] 
- [wiki:WikiPedia/Jacobian Jacobian]
