# exit from the cycle

2 views (last 30 days)
Lev Mihailov on 7 Nov 2019
Answered: darova on 7 Nov 2019
Hello! If I create a cycle, I need it, when the cycle was executed, it went to the next column and saved the number of digits until it was executed
for i = 1:length(A)
if A(i,i)<A(i,i) % column and row number
B{i}=A
end
end
and I have two questions
1) how to end a cycle when conditions are fulfilled for the first time
2) how to work with rows and columns

Bhaskar R on 7 Nov 2019
1) how to end a cycle when conditions are fulfilled for the first time
Use break keyword to exit cycle as
for i = 1:length(A)
% actually "A(i,i)<A(i,i)"it always fails
if A(i,i)<threshold_value %comparing fake threshold_value % condition
B{i}=A;
break; % to break cycle
end
end
2) how to work with rows and columns
To work with rows and columns use to for loops as
for i = 1:size(A,1) % for row access
for j = 1:size(A,2) % for column access
if A(i,j) < threshold_value % condition
B{i, j}=A; % some opeartion
end
end
Refer MATLAB basic documentation help to learn MATLAB fundamentals

#### 1 Comment

Bhaskar R on 7 Nov 2019

darova on 7 Nov 2019
Use break to exit loop
• 2) how to work with rows and columns
The question is unclear. You can use 2 for loops
for i = 1:size(A,1) % rows
for j = 1:size(A,2) % columns
% if ...
end
end