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How to add a string output to this function?

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Lorenz
Lorenz 2013-6-10
Is it possible to add an ouptput, which says what operation made the function, to this following function?
function [op] = operation( A,B )
X=[A+B; A-B; A/B; A*B; B-A; B/A;]
Y=X(randperm(6),:)
if Y(1,1)>0 && Y(1,1)==int16(Y(1,1))
op=Y(1,1);
else
operation(A,B)
end
end
For example,
EDU>> operation(4,2)
ans=
6
The output is 6, wa all knows that the function did 4+2=6, but how to add the output '+' . For example output:
op = 6 s = +

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2013-6-10
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

更多回答（1 个）

David Sanchez
David Sanchez 2013-6-10
function [op,s] = operation( A,B )
% your code here
s = '+'; % or whatever you want to be the string
Use a switch/case to choose among your options

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