A Blue Lagoon Function

    Research output: Memorandum/expositionMemorandum

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    Abstract

    We consider a specific function of two variables whose graph surface resembles a blue lagoon. The function has a saddle point $p$, but when the function is restricted to any given straight line through $p$ it has a {\em{strict local minimum}} along that line at $p$.
    Original languageEnglish
    Publication date2007
    Publication statusPublished - 2007

    Bibliographical note

    The note is a textual support for the presentation of a 3D-printed solid version of the graph surface for the function alluded to in the abstract. The 3D print was made at DTU Mathematics upon special request from Gunnar Mohr, Dean of Studies, DTU.

    Keywords

    • Functions of two variables

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