using operators (+,-,*,/) in variables
5 views (last 30 days)
Show older comments
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;
0 Comments
Accepted Answer
Guillaume
on 3 Dec 2014
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
2 Comments
Guillaume
on 3 Dec 2014
Note that if you don't require to start with a string, you could just define opfn as:
opfn = @plus; %@minus, @times, @rdivide for elementwise -, *, / respectively
More Answers (1)
Azzi Abdelmalek
on 3 Dec 2014
You can create this function
function y=op(a,b,operator)
if operator=='+'
y=a+b
elseif operator=='-'
y=a-b
elseif operator=='/'
y=a/b
elseif operator=='*'
y=a*b
end
% And call it
y=op(5,6,'+')
0 Comments
See Also
Categories
Find more on Logical in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!