Cody

# Problem 45221. cofactor matrix

Solution 2927083

Submitted on 9 Sep 2020 by Alfonso Nieto-Castanon
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### Test Suite

Test Status Code Input and Output
1   Pass
x=[1,2,3;0,4,5;1,0,6]; y_correct = [24 5 -4 -12 3 2 -2 -5 4] assert(isequal(cofactor_mat(x),y_correct))

y_correct = 24 5 -4 -12 3 2 -2 -5 4

2   Pass
x=[1,7;2,0] y_correct=[0 -2 -7 1] assert(isequal(cofactor_mat(x),y_correct))

x = 1 7 2 0 y_correct = 0 -2 -7 1

3   Pass
x=zeros(5) y_correct=zeros(5) assert(isequal(cofactor_mat(x),y_correct))

x = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 y_correct = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 [Warning: Matrix is singular to working precision.] [> In cofactor_mat (line 2) In ScoringEngineTestPoint3 (line 3) In solutionTest (line 7) In matlab.unittest.internal.executeCodeBlock (line 11) In matlab.unittest.internal/ScriptTestCaseProvider/evaluateTestSection (line 134) In matlab.unittest.internal/ScriptTestCaseProvider/runTestSection (line 128) In matlab.unittest.internal.ScriptTestCaseProvider>@(testCase)provider.runTestSection(testCase) (line 94) In matlab.unittest/FunctionTestCase/test (line 96) In matlab.unittest/TestRunner/evaluateMethodCore (line 873) In matlab.unittest/TestRunner/evaluateMethod (line 1190) In matlab.unittest/TestRunner/invokeTestContentOperatorMethod_ (line 928) In matlab.unittest.plugins/TestRunnerPlugin/evaluateMethod (line 729) In scoringengine/OutputPlugin/evaluateMethod In matlab.unittest.plugins/TestRunnerPlugin/invokeTestContentOperatorMethod_ (line 760) In matlab.unittest.plugins/TestRunnerPlugin/evaluateMethod (line 729) In scoringengine/FiguresPlugin/evaluateMethod In matlab.unittest.plugins/TestRunnerPlugin/invokeTestContentOperatorMethod_ (line 760) In matlab.unittest/TestRunner/evaluateMethodOnPlugins (line 438) In matlab.unittest/TestRunner/evaluateMethodsOnTestContent (line 815) In matlab.unittest/TestRunner/runTestMethod (line 1186) In matlab.unittest/TestRunner/invokeTestContentOperatorMethod_ (line 928) In matlab.unittest.plugins/TestRunnerPlugin/runTestMethod (line 648) In scoringengine/OutputPlugin/runTestMethod In matlab.unittest.plugins/TestRunnerPlugin/invokeTestContentOperatorMethod_ (line 760) In matlab.unittest.plugins/TestRunnerPlugin/runTestMethod (line 648) In scoringengine/FiguresPlugin/runTestMethod In matlab.unittest.plugins/TestRunnerPlugin/invokeTestContentOperatorMethod_ (line 760) In matlab.unittest/TestRunner/evaluateMethodOnPlugins (line 438) In matlab.unittest/TestRunner/runTest (line 1133) In matlab.unittest/TestRunner/repeatTest (line 516) In matlab.unittest/TestRunner/runSharedTestCase (line 472) In matlab.unittest/TestRunner/runTestClass (line 1042) In matlab.unittest/TestRunner/invokeTestContentOperatorMethod_ (line 928) In matlab.unittest/TestRunner/evaluateMethodOnPlugins (line 438) In matlab.unittest/TestRunner/runTestSuite (line 979) In matlab.unittest/TestRunner/invokeTestContentOperatorMethod_ (line 928) In matlab.unittest.plugins/TestRunnerPlugin/runTestSuite (line 265) In scoringengine/OutputPlugin/runTestSuite In matlab.unittest.plugins/TestRunnerPlugin/invokeTestContentOperatorMethod_ (line 760) In matlab.unittest.plugins/TestRunnerPlugin/runTestSuite (line 265) In scoringengine/FiguresPlugin/runTestSuite In matlab.unittest.plugins/TestRunnerPlugin/invokeTestContentOperatorMethod_ (line 760) In matlab.unittest.plugins/TestRunnerPlugin/runTestSuite (line 265) In matlab.unittest.plugins/DiagnosticsRecordingPlugin/runTestSuite (line 201) In matlab.unittest.plugins/TestRunnerPlugin/invokeTestContentOperatorMethod_ (line 760) In matlab.unittest/TestRunner/evaluateMethodOnPlugins (line 438) In matlab.unittest/TestRunner/evaluateMethodOnPluginsFromMethodName (line 426) In matlab.unittest.internal/SerialTestRunStrategy/runSession (line 22) In matlab.unittest/TestRunner/runSession (line 940) In matlab.unittest/TestRunner/invokeTestContentOperatorMethod_ (line 928) In matlab.unittest/TestRunner/evaluateMethodOnPlugins (line 438) In matlab.unittest/TestRunner/evaluateMethodOnPluginsFromMethodName (line 426) In matlab.unittest/TestRunner/doRunWithFcn (line 409) In matlab.unittest/TestRunner/run (line 297) In scoringengine.verifyCode In scoringengine.verifyCode In connector.internal.fevalMatlab In connector.internal.fevalJSON ]

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