{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2025-12-14T01:33:56.000Z","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":"2025-12-14T00:00:00.000Z","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":44243,"title":"Ternary Conditional Operator","description":"Returns one of two expressions depending on a condition.\r\n\r\n  (test) : (expression1) : (expression2)\r\n\r\n*test:* \r\nAny Boolean expression.\r\n\r\n*expression1:* \r\nA function handle called if test is true. \r\n\r\n*expression2:* \r\nA function handle called if test is false. \r\n\r\n*Example*\r\n\r\n  \u003e\u003e a = (2 \u003e 1) : (@() 1) : (@() 2)\r\n     a =\r\n          1\r\n  \u003e\u003e a = (1 \u003e 2) : (@() 1) : (@() 2)\r\n     a =\r\n          2\r\n\r\nThe |colon.m| you submitted will be moved to the class folder |@function_handle|:\r\n  \r\n  mkdir @function_handle\r\n  movefile submission/colon.m @function_handle","description_html":"\u003cp\u003eReturns one of two expressions depending on a condition.\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e(test) : (expression1) : (expression2)\r\n\u003c/pre\u003e\u003cp\u003e\u003cb\u003etest:\u003c/b\u003e \r\nAny Boolean expression.\u003c/p\u003e\u003cp\u003e\u003cb\u003eexpression1:\u003c/b\u003e \r\nA function handle called if test is true.\u003c/p\u003e\u003cp\u003e\u003cb\u003eexpression2:\u003c/b\u003e \r\nA function handle called if test is false.\u003c/p\u003e\u003cp\u003e\u003cb\u003eExample\u003c/b\u003e\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e\u0026gt;\u0026gt; a = (2 \u0026gt; 1) : (@() 1) : (@() 2)\r\n   a =\r\n        1\r\n\u0026gt;\u0026gt; a = (1 \u0026gt; 2) : (@() 1) : (@() 2)\r\n   a =\r\n        2\r\n\u003c/pre\u003e\u003cp\u003eThe \u003ctt\u003ecolon.m\u003c/tt\u003e you submitted will be moved to the class folder \u003ctt\u003e@function_handle\u003c/tt\u003e:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003emkdir @function_handle\r\nmovefile submission/colon.m @function_handle\r\n\u003c/pre\u003e","function_template":"function y = colon1(test, expr1, expr2)\r\n  y = expr1;\r\nend","test_suite":"%%\r\nmkdir @function_handle\r\nmovefile colon1.m @function_handle/colon.m\r\n\r\n%%\r\nassert(isequal((2 \u003e 1) : (@() 1) : (@() 2), 1))\r\n\r\n%%\r\nassert(isequal((1 \u003e 2) : (@() 1) : (@() 2), 2))\r\n\r\n%%\r\nfib = @(f, n) (n \u003e 2) : (@() f(f, n - 1) + f(f, n - 2)) : (@() 1);\r\nassert(fib(fib, 20) == 6765)\r\n\r\n%%\r\nx = magic(3);\r\n[m,I] = (x(1) \u003e 0) : (@() max(x)) : (@() min(x)) \r\nassert(isequal(m, [8 9 7]) \u0026\u0026 isequal(I, [1 3 2]))\r\n","published":true,"deleted":false,"likes_count":6,"comments_count":5,"created_by":1434,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":12,"test_suite_updated_at":"2020-04-22T14:42:35.000Z","rescore_all_solutions":false,"group_id":52,"created_at":"2017-06-27T15:11:40.000Z","updated_at":"2026-03-05T14:28:10.000Z","published_at":"2017-06-27T15:11:40.000Z","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\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"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\\n\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\u003eReturns one of two expressions depending on a condition.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[(test) : (expression1) : (expression2)]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003etest:\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e Any Boolean expression.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eexpression1:\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e A function handle called if test is true.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eexpression2:\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e A function handle called if test is false.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eExample\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[\u003e\u003e a = (2 \u003e 1) : (@() 1) : (@() 2)\\n   a =\\n        1\\n\u003e\u003e a = (1 \u003e 2) : (@() 1) : (@() 2)\\n   a =\\n        2]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eThe\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:rFonts w:cs=\\\"monospace\\\"/\u003e\u003c/w:rPr\u003e\u003cw:t\u003ecolon.m\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e you submitted will be moved to the class folder\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:rFonts w:cs=\\\"monospace\\\"/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e@function_handle\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[mkdir @function_handle\\nmovefile submission/colon.m @function_handle]]\u003e\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\"}]}"},{"id":45583,"title":"Determined if input object array is heterogeneous","description":"Classes inherent from matlab.mixin.Heterogeneous can form arrays of heterogeneous elements, that is elements of different subclasses of the same superclass. \r\nImplement a function to determine if incoming vector is heterogeneous, i.e. a mix of more than one classes, or not. \r\n\r\ne.g. the following code create a heterogeneous array of objects. \r\n\r\n  x = [rectangle, line];\r\n\r\nso\r\n \r\n  y == true\r\n","description_html":"\u003cp\u003eClasses inherent from matlab.mixin.Heterogeneous can form arrays of heterogeneous elements, that is elements of different subclasses of the same superclass. \r\nImplement a function to determine if incoming vector is heterogeneous, i.e. a mix of more than one classes, or not.\u003c/p\u003e\u003cp\u003ee.g. the following code create a heterogeneous array of objects.\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003ex = [rectangle, line];\r\n\u003c/pre\u003e\u003cp\u003eso\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003ey == true\r\n\u003c/pre\u003e","function_template":"function y = isheterogeneous(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = [figure; axes; rectangle];\r\ny_correct = true;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%%\r\nx = [matlab.net.http.io.FileProvider, matlab.net.http.io.JSONProvider];\r\ny_correct = true;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%%\r\nx = \"\";\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%% \r\nx = rand(5, 4);\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%% \r\nx = {table(), 123, digraph()};\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%%\r\nx = [figure; figure];\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%%\r\nx = [];\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n","published":true,"deleted":false,"likes_count":0,"comments_count":0,"created_by":327375,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":6,"test_suite_updated_at":"2020-05-22T17:00:18.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2020-05-22T16:58:54.000Z","updated_at":"2020-05-22T17:00:18.000Z","published_at":"2020-05-22T16:58:54.000Z","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\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"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\\n\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\u003eClasses inherent from matlab.mixin.Heterogeneous can form arrays of heterogeneous elements, that is elements of different subclasses of the same superclass. Implement a function to determine if incoming vector is heterogeneous, i.e. a mix of more than one classes, or not.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003ee.g. the following code create a heterogeneous array of objects.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[x = [rectangle, line];]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eso\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[y == true]]\u003e\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":{"errors":[],"problems":[{"id":44243,"title":"Ternary Conditional Operator","description":"Returns one of two expressions depending on a condition.\r\n\r\n  (test) : (expression1) : (expression2)\r\n\r\n*test:* \r\nAny Boolean expression.\r\n\r\n*expression1:* \r\nA function handle called if test is true. \r\n\r\n*expression2:* \r\nA function handle called if test is false. \r\n\r\n*Example*\r\n\r\n  \u003e\u003e a = (2 \u003e 1) : (@() 1) : (@() 2)\r\n     a =\r\n          1\r\n  \u003e\u003e a = (1 \u003e 2) : (@() 1) : (@() 2)\r\n     a =\r\n          2\r\n\r\nThe |colon.m| you submitted will be moved to the class folder |@function_handle|:\r\n  \r\n  mkdir @function_handle\r\n  movefile submission/colon.m @function_handle","description_html":"\u003cp\u003eReturns one of two expressions depending on a condition.\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e(test) : (expression1) : (expression2)\r\n\u003c/pre\u003e\u003cp\u003e\u003cb\u003etest:\u003c/b\u003e \r\nAny Boolean expression.\u003c/p\u003e\u003cp\u003e\u003cb\u003eexpression1:\u003c/b\u003e \r\nA function handle called if test is true.\u003c/p\u003e\u003cp\u003e\u003cb\u003eexpression2:\u003c/b\u003e \r\nA function handle called if test is false.\u003c/p\u003e\u003cp\u003e\u003cb\u003eExample\u003c/b\u003e\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e\u0026gt;\u0026gt; a = (2 \u0026gt; 1) : (@() 1) : (@() 2)\r\n   a =\r\n        1\r\n\u0026gt;\u0026gt; a = (1 \u0026gt; 2) : (@() 1) : (@() 2)\r\n   a =\r\n        2\r\n\u003c/pre\u003e\u003cp\u003eThe \u003ctt\u003ecolon.m\u003c/tt\u003e you submitted will be moved to the class folder \u003ctt\u003e@function_handle\u003c/tt\u003e:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003emkdir @function_handle\r\nmovefile submission/colon.m @function_handle\r\n\u003c/pre\u003e","function_template":"function y = colon1(test, expr1, expr2)\r\n  y = expr1;\r\nend","test_suite":"%%\r\nmkdir @function_handle\r\nmovefile colon1.m @function_handle/colon.m\r\n\r\n%%\r\nassert(isequal((2 \u003e 1) : (@() 1) : (@() 2), 1))\r\n\r\n%%\r\nassert(isequal((1 \u003e 2) : (@() 1) : (@() 2), 2))\r\n\r\n%%\r\nfib = @(f, n) (n \u003e 2) : (@() f(f, n - 1) + f(f, n - 2)) : (@() 1);\r\nassert(fib(fib, 20) == 6765)\r\n\r\n%%\r\nx = magic(3);\r\n[m,I] = (x(1) \u003e 0) : (@() max(x)) : (@() min(x)) \r\nassert(isequal(m, [8 9 7]) \u0026\u0026 isequal(I, [1 3 2]))\r\n","published":true,"deleted":false,"likes_count":6,"comments_count":5,"created_by":1434,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":12,"test_suite_updated_at":"2020-04-22T14:42:35.000Z","rescore_all_solutions":false,"group_id":52,"created_at":"2017-06-27T15:11:40.000Z","updated_at":"2026-03-05T14:28:10.000Z","published_at":"2017-06-27T15:11:40.000Z","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\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"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\\n\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\u003eReturns one of two expressions depending on a condition.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[(test) : (expression1) : (expression2)]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003etest:\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e Any Boolean expression.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eexpression1:\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e A function handle called if test is true.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eexpression2:\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e A function handle called if test is false.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eExample\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[\u003e\u003e a = (2 \u003e 1) : (@() 1) : (@() 2)\\n   a =\\n        1\\n\u003e\u003e a = (1 \u003e 2) : (@() 1) : (@() 2)\\n   a =\\n        2]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eThe\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:rFonts w:cs=\\\"monospace\\\"/\u003e\u003c/w:rPr\u003e\u003cw:t\u003ecolon.m\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e you submitted will be moved to the class folder\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:rFonts w:cs=\\\"monospace\\\"/\u003e\u003c/w:rPr\u003e\u003cw:t\u003e@function_handle\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e:\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[mkdir @function_handle\\nmovefile submission/colon.m @function_handle]]\u003e\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\"}]}"},{"id":45583,"title":"Determined if input object array is heterogeneous","description":"Classes inherent from matlab.mixin.Heterogeneous can form arrays of heterogeneous elements, that is elements of different subclasses of the same superclass. \r\nImplement a function to determine if incoming vector is heterogeneous, i.e. a mix of more than one classes, or not. \r\n\r\ne.g. the following code create a heterogeneous array of objects. \r\n\r\n  x = [rectangle, line];\r\n\r\nso\r\n \r\n  y == true\r\n","description_html":"\u003cp\u003eClasses inherent from matlab.mixin.Heterogeneous can form arrays of heterogeneous elements, that is elements of different subclasses of the same superclass. \r\nImplement a function to determine if incoming vector is heterogeneous, i.e. a mix of more than one classes, or not.\u003c/p\u003e\u003cp\u003ee.g. the following code create a heterogeneous array of objects.\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003ex = [rectangle, line];\r\n\u003c/pre\u003e\u003cp\u003eso\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003ey == true\r\n\u003c/pre\u003e","function_template":"function y = isheterogeneous(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = [figure; axes; rectangle];\r\ny_correct = true;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%%\r\nx = [matlab.net.http.io.FileProvider, matlab.net.http.io.JSONProvider];\r\ny_correct = true;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%%\r\nx = \"\";\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%% \r\nx = rand(5, 4);\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%% \r\nx = {table(), 123, digraph()};\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%%\r\nx = [figure; figure];\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n\r\n%%\r\nx = [];\r\ny_correct = false;\r\nassert(isequal(isheterogeneous(x),y_correct))\r\n","published":true,"deleted":false,"likes_count":0,"comments_count":0,"created_by":327375,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":6,"test_suite_updated_at":"2020-05-22T17:00:18.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2020-05-22T16:58:54.000Z","updated_at":"2020-05-22T17:00:18.000Z","published_at":"2020-05-22T16:58:54.000Z","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\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"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\\n\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\u003eClasses inherent from matlab.mixin.Heterogeneous can form arrays of heterogeneous elements, that is elements of different subclasses of the same superclass. Implement a function to determine if incoming vector is heterogeneous, i.e. a mix of more than one classes, or not.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003ee.g. the following code create a heterogeneous array of objects.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[x = [rectangle, line];]]\u003e\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eso\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"code\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u003c![CDATA[y == true]]\u003e\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\"}]}"}],"term":"tag:\"oop\"","current_player_id":null,"fields":[{"name":"page","type":"integer","callback":null,"default":1,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":null,"prepend":true},{"name":"per_page","type":"integer","callback":null,"default":50,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":null,"prepend":true},{"name":"sort","type":"string","callback":null,"default":null,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":null,"prepend":true},{"name":"body","type":"text","callback":null,"default":"*:*","directive":null,"facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":false},{"name":"group","type":"string","callback":null,"default":null,"directive":"group","facet":true,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"difficulty_rating_bin","type":"string","callback":null,"default":null,"directive":"difficulty_rating_bin","facet":true,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"id","type":"integer","callback":null,"default":null,"directive":"id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"tag","type":"string","callback":null,"default":null,"directive":"tag","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"product","type":"string","callback":null,"default":null,"directive":"product","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"created_at","type":"timeframe","callback":{},"default":null,"directive":"created_at","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"profile_id","type":"integer","callback":null,"default":null,"directive":"author_id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"created_by","type":"string","callback":null,"default":null,"directive":"author","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"player_id","type":"integer","callback":null,"default":null,"directive":"solver_id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"player","type":"string","callback":null,"default":null,"directive":"solver","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"solvers_count","type":"integer","callback":null,"default":null,"directive":"solvers_count","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"comments_count","type":"integer","callback":null,"default":null,"directive":"comments_count","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"likes_count","type":"integer","callback":null,"default":null,"directive":"likes_count","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"leader_id","type":"integer","callback":null,"default":null,"directive":"leader_id","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true},{"name":"leading_solution","type":"integer","callback":null,"default":null,"directive":"leading_solution","facet":null,"facet_method":"and","operator":null,"param":"term","static":null,"prepend":true}],"filters":[{"name":"asset_type","type":"string","callback":null,"default":null,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":null,"static":"\"cody:problem\"","prepend":true},{"name":"profile_id","type":"integer","callback":{},"default":null,"directive":null,"facet":null,"facet_method":"and","operator":null,"param":"author_id","static":null,"prepend":true}],"query":{"params":{"per_page":50,"term":"tag:\"oop\"","current_player":null,"sort":"map(difficulty_value,0,0,999) asc"},"parser":"MathWorks::Search::Solr::QueryParser","directives":{"term":{"directives":{"tag":[["tag:\"oop\"","","\"","oop","\""]]}}},"facets":{"#\u003cMathWorks::Search::Field:0x00007f4f45eb8160\u003e":null,"#\u003cMathWorks::Search::Field:0x00007f4f45eb80c0\u003e":null},"filters":{"#\u003cMathWorks::Search::Field:0x00007f4f45eb76c0\u003e":"\"cody:problem\""},"fields":{"#\u003cMathWorks::Search::Field:0x00007f4f45eb85c0\u003e":1,"#\u003cMathWorks::Search::Field:0x00007f4f45eb8480\u003e":50,"#\u003cMathWorks::Search::Field:0x00007f4f45eb8340\u003e":"map(difficulty_value,0,0,999) asc","#\u003cMathWorks::Search::Field:0x00007f4f45eb82a0\u003e":"tag:\"oop\""},"user_query":{"#\u003cMathWorks::Search::Field:0x00007f4f45eb82a0\u003e":"tag:\"oop\""},"queried_facets":{}},"query_backend":{"connection":{"configuration":{"index_url":"http://index-op-v2/solr/","query_url":"http://search-op-v2/solr/","direct_access_index_urls":["http://index-op-v2/solr/"],"direct_access_query_urls":["http://search-op-v2/solr/"],"timeout":10,"vhost":"search","exchange":"search.topic","heartbeat":30,"pre_index_mode":false,"host":"rabbitmq-eks","port":5672,"username":"search","password":"J3bGPZzQ7asjJcCk","virtual_host":"search","indexer":"amqp","http_logging":"true","core":"cody"},"query_connection":{"uri":"http://search-op-v2/solr/cody/","proxy":null,"connection":{"parallel_manager":null,"headers":{"User-Agent":"Faraday v1.0.1"},"params":{},"options":{"params_encoder":"Faraday::FlatParamsEncoder","proxy":null,"bind":null,"timeout":null,"open_timeout":null,"read_timeout":null,"write_timeout":null,"boundary":null,"oauth":null,"context":null,"on_data":null},"ssl":{"verify":true,"ca_file":null,"ca_path":null,"verify_mode":null,"cert_store":null,"client_cert":null,"client_key":null,"certificate":null,"private_key":null,"verify_depth":null,"version":null,"min_version":null,"max_version":null},"default_parallel_manager":null,"builder":{"adapter":{"name":"Faraday::Adapter::NetHttp","args":[],"block":null},"handlers":[{"name":"Faraday::Response::RaiseError","args":[],"block":null}],"app":{"app":{"ssl_cert_store":{"verify_callback":null,"error":null,"error_string":null,"chain":null,"time":null},"app":{},"connection_options":{},"config_block":null}}},"url_prefix":"http://search-op-v2/solr/cody/","manual_proxy":false,"proxy":null},"update_format":"RSolr::JSON::Generator","update_path":"update","options":{"url":"http://search-op-v2/solr/cody"}}},"query":{"params":{"per_page":50,"term":"tag:\"oop\"","current_player":null,"sort":"map(difficulty_value,0,0,999) asc"},"parser":"MathWorks::Search::Solr::QueryParser","directives":{"term":{"directives":{"tag":[["tag:\"oop\"","","\"","oop","\""]]}}},"facets":{"#\u003cMathWorks::Search::Field:0x00007f4f45eb8160\u003e":null,"#\u003cMathWorks::Search::Field:0x00007f4f45eb80c0\u003e":null},"filters":{"#\u003cMathWorks::Search::Field:0x00007f4f45eb76c0\u003e":"\"cody:problem\""},"fields":{"#\u003cMathWorks::Search::Field:0x00007f4f45eb85c0\u003e":1,"#\u003cMathWorks::Search::Field:0x00007f4f45eb8480\u003e":50,"#\u003cMathWorks::Search::Field:0x00007f4f45eb8340\u003e":"map(difficulty_value,0,0,999) asc","#\u003cMathWorks::Search::Field:0x00007f4f45eb82a0\u003e":"tag:\"oop\""},"user_query":{"#\u003cMathWorks::Search::Field:0x00007f4f45eb82a0\u003e":"tag:\"oop\""},"queried_facets":{}},"options":{"fields":["id","difficulty_rating"]},"join":" "},"results":[{"id":44243,"difficulty_rating":"medium-hard"},{"id":45583,"difficulty_rating":"medium-hard"}]}}