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    • CommentRowNumber1.
    • CommentAuthorzskoda
    • CommentTimeOct 19th 2011
    • (edited Oct 19th 2011)

    New entry directional derivative, redirecting also Gâteaux derivative. Much of the material is adapted from Fréchet space (which also calls for this entry). Somebody should write more on the (possibly infinite-dimensional) manifold case.

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