Unrecognized function or variable 'X'.

2021 5 5
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更新时间：2021 5 5
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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))

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KSSV
KSSV 2021-5-5
Ran in:

0 个投票

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

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Yuemeng Wang
Yuemeng Wang 2021-5-5
omg thank you so much!
Yuemeng Wang
Yuemeng Wang 2021-5-5
do you maybe know how to make the x y a bit amaller? as in not use the default -5~5?
thank you!!!
KSSV
KSSV 2021-5-5
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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