What does "@" do ?

827 次查看(过去 30 天)
H ZETT M
H ZETT M 2017-1-12
So this is a simple question. I found some code that uses "@" and I looked it up in the matlab documentation, but I did not find it to be really helpfull. Can somebody explain to me what it does and when/how I want to use it ?

采纳的回答

Vandana Rajan
Vandana Rajan 2017-1-16
编辑:Walter Roberson 2023-10-6
Hi,
You might have seen function handles.
A function handle is a MATLAB® data type that stores an association to a function.
To create a handle for a function, precede the function name with an @ sign. For example, if you have a function called myfunction, create a handle named f as follows:
>> f = @myfunction;
Now if you have a function like
function y = computeSquare(x)
y = x.^2;
end
>> f = @ComputerSquare;
>> a = 4;
>> b = f(a)
will give
b = 16
Please go through these 2 documentation links which very clearly explains about function handles.
Yet another use of the symbol '@' is as class folder designator. An @ sign can indicate the name of a class folder, such as
\@myclass\get.m
See the below link for more info.
  10 个评论
Rockford
Rockford 2022-8-23
It should be computeSquare, not ComputerSquare.

请先登录,再进行评论。

更多回答(1 个)

Amir Azadeh Ranjbar
its function handle
func = @(x) x*2+10
func = function_handle with value:
@(x)x*2+10
func(5)
ans = 20
  3 个评论
Amir Azadeh Ranjbar
Well, this answer that was given (6 years ago) is more confusing....
Dyuman Joshi
Dyuman Joshi 2023-10-7
What makes you think it is confusing? (let alone more confusing)
And your answer does not mention important details that the accepted answer provides.

请先登录,再进行评论。

类别

Help CenterFile Exchange 中查找有关 Call Python from MATLAB 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by