Draw the curve in the x–y plane for which ||(x; y)||inf = 2

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Coupe Honda
Coupe Honda 2017-2-1
回答： Roger Stafford 2017-2-1
Draw the curve in the x–y plane for which ||(x; y)||inf = 2

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Walter Roberson
Walter Roberson 2017-2-1
编辑：Walter Roberson 2017-2-1
If you have R2016b or later, you can use fimplicit() to do the drawing. The appropriate anonymous function is not difficult once you know the definition of infinity norm.
For earlier versions there are a variety of ways, including creating a contour plot.
Roger Stafford
Roger Stafford 2017-2-1
plot([-2,2,2,-2,-2],[-2,-2,2,2,-2],’y-‘)

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