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It could be that you just neglected to define the function f as a three-component vector, but even if you did, you would have gotten no result. The documentation for Curl in Mathematica version 8 doesn't tell you how to specify the coordinates, and the documentation for version 10 is not applicable in version 8. You can find the correct usage of Curl in ...


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As indicated in the comments, this has been fixed as of version 9.0.0. lst = {{a1, a2}, {b1, b2}, {c1, c2}}; Derivative[1][lst[[1]] + #*(lst[[2]] - lst[[3]]) &] (* lst[[2]] - lst[[3]] & *)



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