Cody

# Problem 972. Set a diagonal

Solution 154303

Submitted on 26 Oct 2012
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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));

```Error: Not enough input arguments. ```

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

``` tf = 1 1 1 loc = 11 17 23 M = 17 24 1 8 15 23 5 7 2 16 4 6 13 20 3 10 12 19 21 3 11 18 25 2 9 ```

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

``` tf = 1 1 loc = 5 12 M = 0.9730 0.0835 0.0605 0.2920 0.3724 0.0527 0.6490 0.1332 0.3993 0.4317 0.1981 0.7379 0.8003 0.1734 0.5269 0.0155 0.4897 0.2691 0.4538 0.3909 0.4168 0.9841 0.3395 0.4228 0.2000 0.8314 0.6569 0.1672 0.9516 0.5479 0.8253 -0.2000 0.6280 0.1062 0.9203 0.9427 ```

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));

```Error: Not enough input arguments. ```

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));

```Error: Not enough input arguments. ```