Whenever I run this function, all is good if A(i)==N. However when it is not found, the function seems to run super slowly that i never end up getting the output of 0. Do I need to preallocate somewhere? If so, what would it be?
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"Write a function, Finder, that receives an array of numbers A and a number N and returns the position of N within the array A or the value zero if N is not present within A."
function pos=Finder(A,N)
found=false;
while ~found
for i=1:length(A);
if A(i)==N;
found=true;
break
end
end
end
if found
pos=i;
else
pos=0;
end
end
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Risposte (1)
Walter Roberson
il 11 Set 2017
You should use either a while loop or a for loop, but not both.
2 Commenti
José-Luis
il 11 Set 2017
On top of what Walter said, in your code, if it never gets found, your condition never gets set to true and you never break out of the while loop.
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