MATLAB: Using operators (+,-,*,/) in variables

MATLABoperators

Hi, if i need to config for + to be 'op' for example how can i then use it as an actual + further down the code?

example

op='+';
a=1;
b=2;
c=a(+ as op)b;

Best Answer

Use str2fun to change your string into a function handle. Note that the string content must be a valid matlab function name ( '+' is)

op = '+';
a = 1;
b = 2;
opfn = str2fun(op);
c = opfn(a, b);

There is no way to have it

c = a opfn b; %can't be done in matlab

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function [op,op1] = operation( A,B )
X=[A+B; A-B; A/B; A*B; B-A; B/A;];
o={'plus','minus','div','prod','iminus','idiv'}
ii=randperm(6)
op1=o{ii(1)};
Y=X(ii,:);
if Y(1,1)>0 && Y(1,1)==int16(Y(1,1))
  op=Y(1,1);
else
  [op,op1]=operation(A,B);
end
end

MATLAB: Enable/disable parameter in embedded matlab function

function y=fcn(a,b,c,d)
if d==1
 y=a
elseif d==2
 y=a+b
elseif d==3
 y=a+b+c
end

%or

function y=fcn(a,b,c,d)
v=[a b c];
y=sum(v(1:d))

Best Answer

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