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i am trying to make a calculator in matlab gui and i add + or - and i want to add int and diff so i write the 5 lines of codes
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syms x;
input=get(handles.edit3,'string');
input = strcat('@(x) ',input);
fx=str2func(input);
c=int(fx,x);
set(handles.text2,'string',char(c));
i write the 5 lines but not this one input = strcat('@(x) ',input); when i added this one my int and diff start working inside the gui what i am not geting is what is this starcat do for the int and diff and what is the @'x' mean
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Mehmed Saad
2020년 5월 7일
편집: Mehmed Saad
2020년 5월 7일
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suppose i want to create an anonymous function which subtract two inputs
An_fn = @(x,y) x-y;
It is equivilant to
function op = Not_An_fn(x,y)
op = x-y;
end
An_fn(1,2)
and
Not_An_fn(1,2)
will give you same output
str2func converts the string into anonymous function
suppose my string is 'x-y'
so i need to define the input arguments by @(x,y)
strcat is concatenating the input argument with the string 'x-y'
user_string = 'x-y';
strcat('@(x,y)',user_string)
ans =
'@(x,y) x-y'
Now if we apply str2func to convert it to anonymous function
fh = str2func(strcat('@(x,y)','x-y'))
fh =
function_handle with value:
@(x,y)x-y
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