basic code question

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John
John 2012-3-22
Hello
What does the '@' symbol do in this equation?
Is the first (z) multiplied the e^(...)?
thank you
% Gaussian kernel function
kerf=@(z)exp(-z.*z/2)/sqrt(2*pi);

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采纳的回答

Matt Kindig
Matt Kindig 2012-3-22
It is a function handle. It means that you are defining an anonymous function 'kerf' that takes z as an input. The actual equation is just
exp(-z.*z/2)/sqrt(2*pi)
The User Guide has a pretty good write-up about these. Search "anonymous function" in the Help.

更多回答（1 个）

Wayne King
Wayne King 2012-3-22
That is a function handle.

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