@(x) and inline

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

Answer 1

[the cyclist]

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.

Answer 2

[Azzi Abdelmalek]

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 @.

[Walter Roberson]

inline does not quite do the same thing as @. The two return different classes of object, which have different methods.

[Azzi Abdelmalek]

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]

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.