Why does function isscalar() return "1" for function handles?

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James Usevitch
James Usevitch 2018-12-7
编辑： Stephen23 2018-12-7
Why does the function isscalar return a logical 1 for function handles? Working example:
test_function = @(x) x^2;
isscalar(test_function)
The above code returns a logical 1 for me. I'm running MATLAB R2018a on Ubuntu 16.04.
This came up while writing code that programmatically finds all scalar properties of an object. Not a big deal since I can use this answer as a workaround--I'm just asking out of curiosity.

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Stephen23
Stephen23 2018-12-7
编辑：Stephen23 2018-12-7
Because the documentation states that "A function handle is always scalar (1-by-1)."
https://www.mathworks.com/help/matlab/matlab_prog/fundamental-matlab-classes.html
MATLAB is based on the principal that everything is an array... so when function handles were added to MATLAB I guess they also had to fit inside this paradigm.

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