Cody

Problem 2587. Find indices of diagonal elements

Solution 501606

Submitted on 15 Sep 2014 by J.R.! Menzinger
  • Size: 18
  • This is the leading solution.
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.
Solve This Problem View on Solution Map

Test Suite

Test Status Code Input and Output
1   Pass
%% x = [1 2 3;4 5 6;7 8 9]; a = [1 5 9]; assert(isequal(diag_indices(x,0),a))

ans = 1 5 9

2   Pass
%% x = magic(5); b = 5; assert(isequal(diag_indices(x,-4),b))

ans = 5

3   Pass
%% x = magic(5); a = 21; assert(isequal(diag_indices(x,4),a))

ans = 21

4   Pass
%% x = magic(5); z = 5; assert(isequal(diag_indices(x,-4),z))

ans = 5

5   Pass
%% x = magic(6); a = [19 26 33]; assert(isequal(diag_indices(x,3),a))

ans = 19 26 33

6   Pass
%% x1 = magic(50); y_correct = 50; assert(isequal(diag_indices(x1,-49),y_correct))

ans = 50

7   Pass
%% x2 = magic(50); y_correct = [49 100]; assert(isequal(diag_indices(x2,-48),y_correct))

ans = 49 100

8   Pass
%% y = magic(50); v = [48 99 150]; assert(isequal(diag_indices(y,-47),v))

ans = 48 99 150

9   Pass
%% v=[1 2 3;4 5 6;1 2 3]; t = [1 5 9]; assert(isequal(diag_indices(v,0),t))

ans = 1 5 9

10   Pass
%% x=[1 2;1 2]; y_correct = 3; assert(isequal(diag_indices(x,1),y_correct))

ans = 3

11   Pass
%% x=[1 1 1;1 1 1;1 1 1]; t = [1 5 9]; assert(isequal(diag_indices(x,0),t))

ans = 1 5 9

12   Pass
%% y=[1 2 3;1 2 3]; y_correct = [1 4]; assert(isequal(diag_indices(y,0),y_correct))

ans = 1 4

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!