@(x) and inline

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Robert
Robert 2013-8-30
Hello
Anyone who knows the main difference between the two arguments “@(x)” and “inline” as in:
incsearch(@(x) sin(10*x) + cos(3*x),3,6)
incsearch(inline('sin(10*x)+cos(3*x)'),3,6)
And when to use which? Or are they simply equal?
Thanks.
/R

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回答（2 个）

the cyclist
the cyclist 2013-8-30
I haven't used inline() in such a long time, that I can't remember if there are any differences.
However, you should definitely use @(x), aka "anonymous functions", from now on, because inline() is slated to be removed in a future a release.
Azzi Abdelmalek
Azzi Abdelmalek 2013-8-30
f1=@(x) sin(10*x) + cos(3*x)
f2=inline('sin(10*x)+cos(3*x)')
f1(10)
f2(10)
inline and @(function_handle) do the same thing, inline is older then @.
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Azzi Abdelmalek
Azzi Abdelmalek 2013-8-30
编辑：Azzi Abdelmalek 2013-8-30
f2 is an inline class while f1 is a function_hundle class, but in the above example f1(x) and f2(x) give the same result.
Walter Roberson
Walter Roberson 2013-8-30
They do appear to give the same result in this case, but the effects of the two are not well enough documented to be able to tell if they would always give the same result. And in fact we can demonstrate that they do not.
f1 = inline('evalin(''caller'',''mfilename'')');
f2 = @(x) evalin('caller', 'mfilename');
now execute f1(1) and f2(1) and see that they give different outputs.

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