Access the diagonal elements of a matrix without 'diag' function
Confused by test 6, x = [1:3;4:6;7:9;10:12]';
y_correct = [1 6 11]; I think this should be [1 5 9] as array is [1 4 7 10;2 5 8 11;3 6 9 12]
Right solution to right problem
Test #5 is incorrect. Transpose on x makes the diagonal [1 5 9], [1 6 11] are not on any diagonal. #5 is the transpose of #4 and taking the transpose does not change the diagonal, unless you have some other definition for diagonal. A good solution is x(find(eye(size(x))))
Rigt solution for wrong problem
Find relatively common elements in matrix rows
Who is the smartest MATLAB programmer?
Given a 4x4 matrix, swap the two middle columns
Close MATLAB with keyboard
Back to basics - mean of corner elements of a matrix
Find the solution of algebraic equation
Reverse the elements of an array
Identify the heavier bag
RMS value from a set of observations
Generate pi using logarithm
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office