spdiags command not working

2017 5 3
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更新时间：2017 5 3
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>> Dx=spdiags([e 2*e e], -1:1, Nx,Nx)/(dx)^{2}
Undefined operator '^' for input arguments of type 'cell'.
What is wrong with this line? cant figure it out.

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Steven Lord
Steven Lord 2017-5-3

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Remove the curly braces from around the 2 at the end of your statement.

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