i am confused with commands for loop

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Hend Nasrallah
Hend Nasrallah el 8 de Jun. de 2021
Comentada: Rena Berman el 29 de Jun. de 2021
Write MATLAB code including loop to look for first zero item in a randomly given vector (1 column and 10 rows). You need to include the generation of this random values vector in the code as well, the random values must be generated between 0 and 10. The search result should be associated with text: 'The zero is found in' and then state the element v(i,1) :
Otherwise, if it is not found, include a text : 'The zero item is not found '.
  2 comentarios
dpb
dpb el 8 de Jun. de 2021
So, what have you tried and where, specifically, did you get stuck?
Did you look up documentation and see examples on random numbers, looping "for...end", etc., etc., etc., ...
Rena Berman
Rena Berman el 29 de Jun. de 2021

(Answers Dev) Restored edit

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Respuestas (2)

Kunal Kandhari
Kunal Kandhari el 8 de Jun. de 2021
To create an array of random numbers between range 0 to 10 with size (10,1):
arr=randi(11,1,10)-1;
% first parameter is range ie., 1-11
%second parameter is number of columns
% third parameter is number of rows
% We want random array between range 0-10 therefore we have substracted 1
% at end from all elements
For more detail about this function you can refer:
For looping over array:
for i=1:length(arr)
end
For more detail about for loop you can refer:
Complete code for this question:
arr=randi(11,1,10)-1;
index=0;
%this index indicates that no 0's are found
disp(arr);
%print whole array, you can remove this line
for i=1:length(arr)
if(arr(i)==0)
%if array element is 0, store its position in index field and break
%loop
index=i;
break;
end
end
% if index is zero then no 0's are found and id index is not zero then 0 is
% present in array at position index
if(index==0)
disp("The zero item is not found ");
else
disp("The zero is found in arr("+index+",1)");
end
Output screenshot:
  2 comentarios
James Tursa
James Tursa el 8 de Jun. de 2021
@Kunal Kandhari We discourage posting complete answers to homework questions.

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Sambit Supriya Dash
Sambit Supriya Dash el 8 de Jun. de 2021
r = (randi([0 10],1,10))';
r0 = r == 0;
if sum(r0) == 0
disp('Zero is not found')
else
for i = 1:length(r)
if r(i) == 0
fprintf('Zero is found in %.0f \n',i)
break
else
end
end
end
  2 comentarios
dpb
dpb el 8 de Jun. de 2021
@Sambit -- note James' comment above -- best practice is to coach and answer specific syntax or similar questions, but it doesn't help the poster much to do their homework for them...
Sambit Supriya Dash
Sambit Supriya Dash el 9 de Jun. de 2021
Editada: Sambit Supriya Dash el 9 de Jun. de 2021
I'll take care to find further it's a homework question or genuine question some is interested to solve. Thank You

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