Problem 564. How to subtract?

Solution 3829148

Submitted on 25 Nov 2020
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Test Suite

Test Status Code Input and Output
1   Fail
X='+68768686834554'; Y='+76574535435398'; Z_correct='-7805848600844'; assert(isequal(mysub(X,Y),Z_correct))

Assertion failed.

2   Fail
X='+1'; Y='+2'; Z_correct ='-1'; assert(isequal(mysub(X,Y),Z_correct))

Assertion failed.

3   Fail
X='+100'; Y='+20'; Z_correct ='+80'; assert(isequal(mysub(X,Y),Z_correct))

Matrix dimensions must agree. Error in mysub (line 2) Z = Y - X; Error in Test3 (line 4) assert(isequal(mysub(X,Y),Z_correct))

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