Cody

# Problem 1042. Operate on matrices of unequal, yet similar, size

Solution 165755

Submitted on 20 Nov 2012 by Khaled Hamed
• Size: 21
• This is the leading solution.
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### Test Suite

Test Status Code Input and Output
1   Pass
%% nocheat = isempty(regexp(evalc('type matched_op'),'([^f]eval|regexprep|inline|str2func)')); x = [1 2;3 4]; y = [1 2]; z_correct = [1 4;3 8]; assert(isequal(matched_op(x,y,'times'),z_correct) && nocheat)

``` ans = 1 4 3 8 ```

2   Pass
%% nocheat = isempty(regexp(evalc('type matched_op'),'([^f]eval|regexprep|inline|str2func)')); x = [10i]; y = [20]; z_correct = [-2i]; assert(isequal(matched_op(x,y,'ldivide'),z_correct) && nocheat)

``` ans = 0 - 2.0000i ```

3   Pass
%% nocheat = isempty(regexp(evalc('type matched_op'),'([^f]eval|regexprep|inline|str2func)')); x = reshape(1:4,[1 1 1 4]); y = (1:4).'; z_correct = reshape([2 3 4 5 3 4 5 6 4 5 6 7 5 6 7 8],[4 1 1 4]); assert(isequal(matched_op(x,y,'plus'),z_correct) && nocheat)

``` ans(:,:,1,1) = 2 3 4 5 ans(:,:,1,2) = 3 4 5 6 ans(:,:,1,3) = 4 5 6 7 ans(:,:,1,4) = 5 6 7 8 ```