Unrecognized function or variable 'X'.

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Yuemeng Wang 2021 年 5 月 5 日

コメント済み: KSSV 2021 年 5 月 5 日

fsurf(X,Y,exp(-2*x.^4+2*x.^2-x.y.^1-y.^2))

i try to plot but the system says:

>> matlabplot

Unrecognized function or variable 'X'.

Error in matlabplot (line 7)

fsurf(X,Y,exp(-2*x.^4+2*x.^2-x.y.^1-y.^2))

KSSV 2021 年 5 月 5 日

fun = @(x,y) exp(-2*x.^4+2*x.^2-x.*y.^1-y.^2) ;

fsurf(fun)

Yuemeng Wang 2021 年 5 月 5 日

do you maybe know how to make the x y a bit amaller? as in not use the default -5~5?

thank you!!!

KSSV 2021 年 5 月 5 日

Read about the function fsurf, there is an option to specify the intervel. Also you can generate the same using surf. Read about surf as well.

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