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# Problem 2235. Back to basics - mean of corner elements of a matrix

Solution 525281

Submitted on 10 Nov 2014 by Giuseppe Cardillo
• Size: 10
• This is the leading solution.
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### Test Suite

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

x = 1 2 3 4 5 6 7 8 9 ans = []

2   Pass
%% x = magic(4) y_correct = 8.5; assert(isequal(MeanCorner(x),y_correct))

x = 16 2 3 13 5 11 10 8 9 7 6 12 4 14 15 1 ans = []

3   Pass
%% x = eye(4) y_correct = 0.5; assert(isequal(MeanCorner(x),y_correct))

x = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 ans = []

4   Pass
%% x = repmat(5, 4,4); y_correct = 5; assert(isequal(MeanCorner(x),y_correct))

ans = []

5   Pass
%% x = [1:10]; y_correct = 5.5; assert(isequal(MeanCorner(x),y_correct))

ans = []

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