MATLAB: What is the difference between A=[]; and A={};

MATLAB

what is the difference between A=[]; and A={}; ?

One initializes the variable as a double (or array of doubles) and the other as a cell (or a cell array)

>> A=[];
>> class(A)
ans =
double

and

>> B={};
>> class(B)
ans =
cell

 syms a
 b=10
 class(a)
 class(b)

>>c = {[]};
>>class(c{1})
ans = double
>>isempty(c{1})
ans = 1

Or if you really want to be specific:

c = {double.empty(0)};