Create function handle from function file
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Arthur Roué
el 10 de Mzo. de 2020
Comentada: tommsch
el 30 de Nov. de 2020
Is it possible to create a function handle from function file ? In other words, create a function_handle object @foo from file foo.m.
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Star Strider
el 10 de Mzo. de 2020
Editada: Steven Lord
el 10 de Mzo. de 2020
Yes!
In some instances, that is necessary in order to evaluate the function.
Example —
function y = f(x)
y = x.^2 - 2;
end
fz = fzero(@f,1)
produces:
fz =
1.4142
[SL: typo fix]
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tommsch
el 30 de Nov. de 2020
@Steven Lord
The function for which you want to create the function handle must be in scope when the function handle is created. It does not need to be in scope when the function handle is evaluated.
When the function is shadowed by another function later on, the function handle may point to another function.
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