Cody

Problem 972. Set a diagonal

Solution 2733949

Submitted on 23 Jul 2020
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Test Suite

Test Status Code Input and Output
1   Fail
M = 1; v = 7; d = 0; M2 = 7; assert(isequal(setDiagonal(M,v,d),M2)); assert(isequal(setDiagonal(M,v),M2));

Not enough input arguments. Error in setDiagonal (line 2) I = circshift(eye(size(M)),-d,1); Error in Test1 (line 6) assert(isequal(setDiagonal(M,v),M2));

2   Pass
M = magic(5); v = 1:3; d = 2; M2 = M; M2([11,17,23]) = v; assert(isequal(setDiagonal(M,v,d),M2));

3   Fail
M = rand(6); v = [.2 -.2]; d = -4; M2 = M; M2([5,12]) = v; assert(isequal(setDiagonal(M,v,d),M2));

Unable to perform assignment because the left and right sides have a different number of elements. Error in setDiagonal (line 8) M(logical(I)) = v; Error in Test3 (line 6) assert(isequal(setDiagonal(M,v,d),M2));

4   Fail
M = zeros(99); v = ones(1,99); d = 0; M2 = eye(99); assert(isequal(setDiagonal(M,v),M2)); assert(isequal(setDiagonal(M,v,d),M2));

Not enough input arguments. Error in setDiagonal (line 2) I = circshift(eye(size(M)),-d,1); Error in Test4 (line 5) assert(isequal(setDiagonal(M,v),M2));

5   Fail
M = zeros(3); v = -1:1; d = 0; M2 = diag(v); assert(isequal(setDiagonal(M,v),M2)); assert(isequal(setDiagonal(M,v,d),M2));

Not enough input arguments. Error in setDiagonal (line 2) I = circshift(eye(size(M)),-d,1); Error in Test5 (line 5) assert(isequal(setDiagonal(M,v),M2));