{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-06-05T00:10:21.000Z","description":"Problems submitted by members of the MATLAB Central community.","is_default":true,"created_by":161519,"badge_id":null,"featured":false,"trending":false,"solution_count_in_trending_period":0,"trending_last_calculated":"2026-06-05T00:00:00.000Z","image_id":null,"published":true,"community_created":false,"status_id":2,"is_default_group_for_player":false,"deleted_by":null,"deleted_at":null,"restored_by":null,"restored_at":null,"description_opc":null,"description_html":null,"published_at":null},"problems":[{"id":44132,"title":"Find my secret function III","description":"only write a function gives you an outputs as\r\nexpls:\r\n\r\ninput: x=2 -------\u003e\u003e\u003e Output: Y=1\r\n\r\ninput: x=100 -------\u003e\u003e\u003e Output: Y=[ 1 2 4 6 10 12 16 18 22 28 30 36 40 42 46     52 58 60 66 70 72 78 82 88 96]\r\n\r\nHint: here we use the same function used in the series of \"Find my secret function\".","description_html":"\u003cp\u003eonly write a function gives you an outputs as\r\nexpls:\u003c/p\u003e\u003cp\u003einput: x=2 -------\u0026gt;\u0026gt;\u0026gt; Output: Y=1\u003c/p\u003e\u003cp\u003einput: x=100 -------\u0026gt;\u0026gt;\u0026gt; Output: Y=[ 1 2 4 6 10 12 16 18 22 28 30 36 40 42 46     52 58 60 66 70 72 78 82 88 96]\u003c/p\u003e\u003cp\u003eHint: here we use the same function used in the series of \"Find my secret function\".\u003c/p\u003e","function_template":"function y = your_fcn_name(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 2;\r\ny_correct = 1;\r\nassert(isequal(your_fcn_name(x),y_correct))\r\n%%\r\nx = 23;\r\ny_correct =[1 2 4 6 10 12 16 18 22];\r\nassert(isequal(your_fcn_name(x),y_correct))\r\n%%\r\nx = 100;\r\ny_correct =[1 2 4 6 10 12 16 18 22 28 30 36 40 42 46 52 58 60 66 70 72 78 82 88 96];\r\nassert(isequal(your_fcn_name(x),y_correct))\r\n%%\r\nx = 1;\r\ny_correct =[];\r\nassert(isequal(your_fcn_name(x),y_correct))","published":true,"deleted":false,"likes_count":2,"comments_count":1,"created_by":37163,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":27,"test_suite_updated_at":"2017-04-26T16:02:09.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2017-04-25T14:50:07.000Z","updated_at":"2025-04-25T12:27:08.000Z","published_at":"2017-04-25T14:50:07.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eonly write a function gives you an outputs as expls:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003einput: x=2 -------\u0026gt;\u0026gt;\u0026gt; Output: Y=1\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003einput: x=100 -------\u0026gt;\u0026gt;\u0026gt; Output: Y=[ 1 2 4 6 10 12 16 18 22 28 30 36 40 42 46 52 58 60 66 70 72 78 82 88 96]\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eHint: here we use the same function used in the series of \\\"Find my secret function\\\".\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"problem_search":{"problems":[{"id":44132,"title":"Find my secret function III","description":"only write a function gives you an outputs as\r\nexpls:\r\n\r\ninput: x=2 -------\u003e\u003e\u003e Output: Y=1\r\n\r\ninput: x=100 -------\u003e\u003e\u003e Output: Y=[ 1 2 4 6 10 12 16 18 22 28 30 36 40 42 46     52 58 60 66 70 72 78 82 88 96]\r\n\r\nHint: here we use the same function used in the series of \"Find my secret function\".","description_html":"\u003cp\u003eonly write a function gives you an outputs as\r\nexpls:\u003c/p\u003e\u003cp\u003einput: x=2 -------\u0026gt;\u0026gt;\u0026gt; Output: Y=1\u003c/p\u003e\u003cp\u003einput: x=100 -------\u0026gt;\u0026gt;\u0026gt; Output: Y=[ 1 2 4 6 10 12 16 18 22 28 30 36 40 42 46     52 58 60 66 70 72 78 82 88 96]\u003c/p\u003e\u003cp\u003eHint: here we use the same function used in the series of \"Find my secret function\".\u003c/p\u003e","function_template":"function y = your_fcn_name(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 2;\r\ny_correct = 1;\r\nassert(isequal(your_fcn_name(x),y_correct))\r\n%%\r\nx = 23;\r\ny_correct =[1 2 4 6 10 12 16 18 22];\r\nassert(isequal(your_fcn_name(x),y_correct))\r\n%%\r\nx = 100;\r\ny_correct =[1 2 4 6 10 12 16 18 22 28 30 36 40 42 46 52 58 60 66 70 72 78 82 88 96];\r\nassert(isequal(your_fcn_name(x),y_correct))\r\n%%\r\nx = 1;\r\ny_correct =[];\r\nassert(isequal(your_fcn_name(x),y_correct))","published":true,"deleted":false,"likes_count":2,"comments_count":1,"created_by":37163,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":27,"test_suite_updated_at":"2017-04-26T16:02:09.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2017-04-25T14:50:07.000Z","updated_at":"2025-04-25T12:27:08.000Z","published_at":"2017-04-25T14:50:07.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eonly write a function gives you an outputs as expls:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003einput: x=2 -------\u0026gt;\u0026gt;\u0026gt; Output: Y=1\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003einput: x=100 -------\u0026gt;\u0026gt;\u0026gt; Output: Y=[ 1 2 4 6 10 12 16 18 22 28 30 36 40 42 46 52 58 60 66 70 72 78 82 88 96]\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eHint: here we use the same function used in the series of \\\"Find my secret function\\\".\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"errors":[],"facets":[[],[{"value":"easy","count":1,"selected":false}]],"term":"tag:\"secret\"","page":1,"per_page":50,"sort":"map(difficulty_value,0,0,999) asc"}}