## A Blue Lagoon Function

Publication: Commissioned › Memorandum – Annual report year: 2007

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**A Blue Lagoon Function.** / Markvorsen, Steen.

Publication: Commissioned › Memorandum – Annual report year: 2007

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*A Blue Lagoon Function*

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TY - GEN

T1 - A Blue Lagoon Function

AU - Markvorsen,Steen

N1 - 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.

PY - 2007

Y1 - 2007

N2 - 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 $p$.

AB - 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 $p$.

KW - Functions of two variables

M3 - Memorandum

ER -