{"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":2170,"title":"Dealfun (1.0)","description":"*Short description.*\r\n\r\nWrite a function _dealfun_:\r\n  \r\n  [y1,y2,...,yn]=dealfun(fhandle,x1,x2,...,xn)\r\n\r\nwhich evaluates the function handle _fhandle_ on arguments _x1,x2,...,xn_  independently and deal solutions to outputs _y1,y2,...,yn_ (so nargin==nargout+1)\r\n\r\n*Long description.*\r\n\r\nSeveral repetitions of exacly same operation on different variables can be a pain in the neck when you are editing your code.\r\n\r\n\r\n  a=a^2+mod(a,3);       a=a^3+4*a+mod(a,3);\r\n  b=b^2+mod(a,3);  --\u003e  b=b^3+4*a+mod(a,3);\r\n  c=c^2+mod(a,3);       c=c^3+4*a+mod(a,3);\r\n  d=d^2+mod(a,3);       d=d^3+4*a+mod(a,3);\r\n\r\nOf course there are as many strategies as programmers. There are also many helpful functions like _cellfun arrayfun deal feval_. But sometimes usage of those functions in one line looks unclear and it doesn't make editing faster. Usage of _dealfun_ could look like that:\r\n\r\n  funh=@(A)A^2+mod(A,3);   --\u003e   funh=@(A)A^3+4*A+mod(A,3);\r\n  [a,b,c,d]=dealfun(@funh,a,b,c,d);\r\n\r\n\r\nexample:\r\n\r\n  \u003e\u003e [a,b,c,d]=dealfun(@sum,ones(1),ones(2),ones(3),ones(4))\r\na =  1\r\nb =  2     2\r\nc =  3     3     3\r\nd =  4     4     4     4\r\n\r\neasy change:\r\n\r\n  \u003e\u003e [a,b,c,d]=dealfun(@numel,ones(1),ones(2),ones(3),ones(4))\r\na =  1\r\nb =  4\r\nc =  9\r\nd =  16\r\n\r\n\r\n","description_html":"\u003cp\u003e\u003cb\u003eShort description.\u003c/b\u003e\u003c/p\u003e\u003cp\u003eWrite a function \u003ci\u003edealfun\u003c/i\u003e:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e[y1,y2,...,yn]=dealfun(fhandle,x1,x2,...,xn)\r\n\u003c/pre\u003e\u003cp\u003ewhich evaluates the function handle \u003ci\u003efhandle\u003c/i\u003e on arguments \u003ci\u003ex1,x2,...,xn\u003c/i\u003e  independently and deal solutions to outputs \u003ci\u003ey1,y2,...,yn\u003c/i\u003e (so nargin==nargout+1)\u003c/p\u003e\u003cp\u003e\u003cb\u003eLong description.\u003c/b\u003e\u003c/p\u003e\u003cp\u003eSeveral repetitions of exacly same operation on different variables can be a pain in the neck when you are editing your code.\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003ea=a^2+mod(a,3);       a=a^3+4*a+mod(a,3);\r\nb=b^2+mod(a,3);  --\u0026gt;  b=b^3+4*a+mod(a,3);\r\nc=c^2+mod(a,3);       c=c^3+4*a+mod(a,3);\r\nd=d^2+mod(a,3);       d=d^3+4*a+mod(a,3);\r\n\u003c/pre\u003e\u003cp\u003eOf course there are as many strategies as programmers. There are also many helpful functions like \u003ci\u003ecellfun arrayfun deal feval\u003c/i\u003e. But sometimes usage of those functions in one line looks unclear and it doesn't make editing faster. Usage of \u003ci\u003edealfun\u003c/i\u003e could look like that:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003efunh=@(A)A^2+mod(A,3);   --\u0026gt;   funh=@(A)A^3+4*A+mod(A,3);\r\n[a,b,c,d]=dealfun(@funh,a,b,c,d);\r\n\u003c/pre\u003e\u003cp\u003eexample:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e\u0026gt;\u0026gt; [a,b,c,d]=dealfun(@sum,ones(1),ones(2),ones(3),ones(4))\r\na =  1\r\nb =  2     2\r\nc =  3     3     3\r\nd =  4     4     4     4\r\n\u003c/pre\u003e\u003cp\u003eeasy change:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e\u0026gt;\u0026gt; [a,b,c,d]=dealfun(@numel,ones(1),ones(2),ones(3),ones(4))\r\na =  1\r\nb =  4\r\nc =  9\r\nd =  16\r\n\u003c/pre\u003e","function_template":"function varargout=dealfun(fhandle,varargin)\r\n  varargout=varargin;\r\nend","test_suite":"%%\r\n[a,b,c,d,e]=deal(1,2,3,[1 2 3],rand(5));\r\nfun=@(X)X;\r\n[f,g,h,i,j]=dealfun(fun,a,b,c,d,e);\r\nassert(isequal({f g h i j},{a,b,c,d,e}))\r\n%%\r\n[a,b,c,d,e]=dealfun(@numel,ones(3),{1 2 3 4},'four',[],5);\r\nassert(isequal({d e b c a},{0 1 4 4 9}))\r\n%%\r\nA=[0 1 1 ; 1 1 0; 0 0 1];\r\n[r,c]=meshgrid(1:3);\r\n[r,c]=dealfun(@(X)nonzeros(X.*A),r,c);\r\nassert(isequal([c,r],[2 1; 1 2; 2 2; 1 3; 3 3]))\r\n%%\r\na=5; b=6; c=[7 8];\r\n[a,b,c]=dealfun(@(X)times(X{:}),{b c},{c a},{a b});\r\nassert(isequal(a,[42 48]))\r\nassert(isequal(b,[35 40]))\r\nassert(isequal(c,30))\r\n\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":2,"created_by":14358,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":30,"test_suite_updated_at":"2014-02-10T12:14:36.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2014-02-10T00:17:21.000Z","updated_at":"2025-12-07T18:14:10.000Z","published_at":"2014-02-10T11:15:37.000Z","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:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eShort description.\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\u003eWrite a function\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003edealfun\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[[y1,y2,...,yn]=dealfun(fhandle,x1,x2,...,xn)]]\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\u003ewhich evaluates the function handle\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003efhandle\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e on arguments\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003ex1,x2,...,xn\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e independently and deal solutions to outputs\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003ey1,y2,...,yn\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e (so nargin==nargout+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\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eLong description.\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\u003eSeveral repetitions of exacly same operation on different variables can be a pain in the neck when you are editing your code.\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[a=a^2+mod(a,3);       a=a^3+4*a+mod(a,3);\\nb=b^2+mod(a,3);  --\u003e  b=b^3+4*a+mod(a,3);\\nc=c^2+mod(a,3);       c=c^3+4*a+mod(a,3);\\nd=d^2+mod(a,3);       d=d^3+4*a+mod(a,3);]]\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\u003eOf course there are as many strategies as programmers. There are also many helpful functions like\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003ecellfun arrayfun deal feval\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e. But sometimes usage of those functions in one line looks unclear and it doesn't make editing faster. Usage of\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003edealfun\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e could look like that:\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[funh=@(A)A^2+mod(A,3);   --\u003e   funh=@(A)A^3+4*A+mod(A,3);\\n[a,b,c,d]=dealfun(@funh,a,b,c,d);]]\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\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,b,c,d]=dealfun(@sum,ones(1),ones(2),ones(3),ones(4))\\na =  1\\nb =  2     2\\nc =  3     3     3\\nd =  4     4     4     4]]\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\u003eeasy change:\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,b,c,d]=dealfun(@numel,ones(1),ones(2),ones(3),ones(4))\\na =  1\\nb =  4\\nc =  9\\nd =  16]]\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":910,"title":"Fix y_correct : Hack","description":"The Test Suite has an error.\r\n\r\nFix the y_correct value.\r\n\r\n(See the tags for hints)","description_html":"\u003cp\u003eThe Test Suite has an error.\u003c/p\u003e\u003cp\u003eFix the y_correct value.\u003c/p\u003e\u003cp\u003e(See the tags for hints)\u003c/p\u003e","function_template":"function y=fix_y_correct\r\n y=2; \r\nend","test_suite":"%%\r\nx = 1;\r\ny_correct = 1;\r\nx=fix_y_correct;\r\ny_correct\r\nassert(isequal(y_correct,2),sprintf('Expected 2, y_correct=%i\\n',y_correct))\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":0,"created_by":3097,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":32,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2012-08-14T02:48:14.000Z","updated_at":"2025-12-18T12:08:41.000Z","published_at":"2012-08-14T03:06:18.000Z","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\u003eThe Test Suite has an error.\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\u003eFix the y_correct value.\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\u003e(See the tags for hints)\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":266,"title":"Return the Nth Output from an Input Command","description":"*Description*\r\n\r\nGiven _F_, a cell array whose first element is a function handle and subsequent elements are arguments, return the _N_ th output of that function. When _N_ is a vector, return outputs in the same order as _N_.\r\n\r\n*Example*\r\n\r\n    F = {@min, [5 2 3 9 13 4 1 7 8]}\r\n    N = 2;\r\n    output = nth_output(F,N);\r\n    output = 7\r\n\r\n    F = {@min, [5 2 3 9 13 4 1 7 8]}\r\n    N = [2,1]\r\n    [output1 output2] = nth_output(F,N);\r\n    output1 = 7\r\n    output2 = 1","description_html":"\u003cp\u003e\u003cb\u003eDescription\u003c/b\u003e\u003c/p\u003e\u003cp\u003eGiven \u003ci\u003eF\u003c/i\u003e, a cell array whose first element is a function handle and subsequent elements are arguments, return the \u003ci\u003eN\u003c/i\u003e th output of that function. When \u003ci\u003eN\u003c/i\u003e is a vector, return outputs in the same order as \u003ci\u003eN\u003c/i\u003e.\u003c/p\u003e\u003cp\u003e\u003cb\u003eExample\u003c/b\u003e\u003c/p\u003e\u003cpre\u003e    F = {@min, [5 2 3 9 13 4 1 7 8]}\r\n    N = 2;\r\n    output = nth_output(F,N);\r\n    output = 7\u003c/pre\u003e\u003cpre\u003e    F = {@min, [5 2 3 9 13 4 1 7 8]}\r\n    N = [2,1]\r\n    [output1 output2] = nth_output(F,N);\r\n    output1 = 7\r\n    output2 = 1\u003c/pre\u003e","function_template":"function y = nth_output(F,N)\r\n  y = N;\r\nend","test_suite":"%%\r\nF = {@min, [5 2 3 9 13 4 1 7 8]};\r\nN = 2;\r\nassert(isequal(nth_output(F,N),7))\r\n\r\n%%\r\nF = {@min, [5 2 3 9 13 4 1 7 8]};\r\nN = 1;\r\nassert(isequal(nth_output(F,N),1))\r\n\r\n%%\r\nF = {@regexp, 'she sells sea shells by the seashore', 's'};\r\nN = [1 4 6];\r\n[a,b,c] = nth_output(F,N);\r\nassert(isequal(a,[1   5   9  11  15  20  29  32]))\r\nassert(isequal(b,num2cell('ssssssss')))\r\nassert(isequal(c,repmat(struct,1,8)))\r\n","published":true,"deleted":false,"likes_count":9,"comments_count":0,"created_by":134,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":68,"test_suite_updated_at":"2012-02-06T06:03:52.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2012-02-06T06:03:52.000Z","updated_at":"2025-10-11T15:29:29.000Z","published_at":"2012-02-06T06:04:27.000Z","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:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eDescription\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\u003eGiven\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eF\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e, a cell array whose first element is a function handle and subsequent elements are arguments, return the\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eN\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e th output of that function. When\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eN\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e is a vector, return outputs in the same order as\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eN\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=\\\"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[    F = {@min, [5 2 3 9 13 4 1 7 8]}\\n    N = 2;\\n    output = nth_output(F,N);\\n    output = 7\\n\\n    F = {@min, [5 2 3 9 13 4 1 7 8]}\\n    N = [2,1]\\n    [output1 output2] = nth_output(F,N);\\n    output1 = 7\\n    output2 = 1]]\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":2170,"title":"Dealfun (1.0)","description":"*Short description.*\r\n\r\nWrite a function _dealfun_:\r\n  \r\n  [y1,y2,...,yn]=dealfun(fhandle,x1,x2,...,xn)\r\n\r\nwhich evaluates the function handle _fhandle_ on arguments _x1,x2,...,xn_  independently and deal solutions to outputs _y1,y2,...,yn_ (so nargin==nargout+1)\r\n\r\n*Long description.*\r\n\r\nSeveral repetitions of exacly same operation on different variables can be a pain in the neck when you are editing your code.\r\n\r\n\r\n  a=a^2+mod(a,3);       a=a^3+4*a+mod(a,3);\r\n  b=b^2+mod(a,3);  --\u003e  b=b^3+4*a+mod(a,3);\r\n  c=c^2+mod(a,3);       c=c^3+4*a+mod(a,3);\r\n  d=d^2+mod(a,3);       d=d^3+4*a+mod(a,3);\r\n\r\nOf course there are as many strategies as programmers. There are also many helpful functions like _cellfun arrayfun deal feval_. But sometimes usage of those functions in one line looks unclear and it doesn't make editing faster. Usage of _dealfun_ could look like that:\r\n\r\n  funh=@(A)A^2+mod(A,3);   --\u003e   funh=@(A)A^3+4*A+mod(A,3);\r\n  [a,b,c,d]=dealfun(@funh,a,b,c,d);\r\n\r\n\r\nexample:\r\n\r\n  \u003e\u003e [a,b,c,d]=dealfun(@sum,ones(1),ones(2),ones(3),ones(4))\r\na =  1\r\nb =  2     2\r\nc =  3     3     3\r\nd =  4     4     4     4\r\n\r\neasy change:\r\n\r\n  \u003e\u003e [a,b,c,d]=dealfun(@numel,ones(1),ones(2),ones(3),ones(4))\r\na =  1\r\nb =  4\r\nc =  9\r\nd =  16\r\n\r\n\r\n","description_html":"\u003cp\u003e\u003cb\u003eShort description.\u003c/b\u003e\u003c/p\u003e\u003cp\u003eWrite a function \u003ci\u003edealfun\u003c/i\u003e:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e[y1,y2,...,yn]=dealfun(fhandle,x1,x2,...,xn)\r\n\u003c/pre\u003e\u003cp\u003ewhich evaluates the function handle \u003ci\u003efhandle\u003c/i\u003e on arguments \u003ci\u003ex1,x2,...,xn\u003c/i\u003e  independently and deal solutions to outputs \u003ci\u003ey1,y2,...,yn\u003c/i\u003e (so nargin==nargout+1)\u003c/p\u003e\u003cp\u003e\u003cb\u003eLong description.\u003c/b\u003e\u003c/p\u003e\u003cp\u003eSeveral repetitions of exacly same operation on different variables can be a pain in the neck when you are editing your code.\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003ea=a^2+mod(a,3);       a=a^3+4*a+mod(a,3);\r\nb=b^2+mod(a,3);  --\u0026gt;  b=b^3+4*a+mod(a,3);\r\nc=c^2+mod(a,3);       c=c^3+4*a+mod(a,3);\r\nd=d^2+mod(a,3);       d=d^3+4*a+mod(a,3);\r\n\u003c/pre\u003e\u003cp\u003eOf course there are as many strategies as programmers. There are also many helpful functions like \u003ci\u003ecellfun arrayfun deal feval\u003c/i\u003e. But sometimes usage of those functions in one line looks unclear and it doesn't make editing faster. Usage of \u003ci\u003edealfun\u003c/i\u003e could look like that:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003efunh=@(A)A^2+mod(A,3);   --\u0026gt;   funh=@(A)A^3+4*A+mod(A,3);\r\n[a,b,c,d]=dealfun(@funh,a,b,c,d);\r\n\u003c/pre\u003e\u003cp\u003eexample:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e\u0026gt;\u0026gt; [a,b,c,d]=dealfun(@sum,ones(1),ones(2),ones(3),ones(4))\r\na =  1\r\nb =  2     2\r\nc =  3     3     3\r\nd =  4     4     4     4\r\n\u003c/pre\u003e\u003cp\u003eeasy change:\u003c/p\u003e\u003cpre class=\"language-matlab\"\u003e\u0026gt;\u0026gt; [a,b,c,d]=dealfun(@numel,ones(1),ones(2),ones(3),ones(4))\r\na =  1\r\nb =  4\r\nc =  9\r\nd =  16\r\n\u003c/pre\u003e","function_template":"function varargout=dealfun(fhandle,varargin)\r\n  varargout=varargin;\r\nend","test_suite":"%%\r\n[a,b,c,d,e]=deal(1,2,3,[1 2 3],rand(5));\r\nfun=@(X)X;\r\n[f,g,h,i,j]=dealfun(fun,a,b,c,d,e);\r\nassert(isequal({f g h i j},{a,b,c,d,e}))\r\n%%\r\n[a,b,c,d,e]=dealfun(@numel,ones(3),{1 2 3 4},'four',[],5);\r\nassert(isequal({d e b c a},{0 1 4 4 9}))\r\n%%\r\nA=[0 1 1 ; 1 1 0; 0 0 1];\r\n[r,c]=meshgrid(1:3);\r\n[r,c]=dealfun(@(X)nonzeros(X.*A),r,c);\r\nassert(isequal([c,r],[2 1; 1 2; 2 2; 1 3; 3 3]))\r\n%%\r\na=5; b=6; c=[7 8];\r\n[a,b,c]=dealfun(@(X)times(X{:}),{b c},{c a},{a b});\r\nassert(isequal(a,[42 48]))\r\nassert(isequal(b,[35 40]))\r\nassert(isequal(c,30))\r\n\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":2,"created_by":14358,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":30,"test_suite_updated_at":"2014-02-10T12:14:36.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2014-02-10T00:17:21.000Z","updated_at":"2025-12-07T18:14:10.000Z","published_at":"2014-02-10T11:15:37.000Z","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:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eShort description.\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\u003eWrite a function\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003edealfun\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[[y1,y2,...,yn]=dealfun(fhandle,x1,x2,...,xn)]]\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\u003ewhich evaluates the function handle\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003efhandle\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e on arguments\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003ex1,x2,...,xn\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e independently and deal solutions to outputs\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003ey1,y2,...,yn\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e (so nargin==nargout+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\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eLong description.\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\u003eSeveral repetitions of exacly same operation on different variables can be a pain in the neck when you are editing your code.\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[a=a^2+mod(a,3);       a=a^3+4*a+mod(a,3);\\nb=b^2+mod(a,3);  --\u003e  b=b^3+4*a+mod(a,3);\\nc=c^2+mod(a,3);       c=c^3+4*a+mod(a,3);\\nd=d^2+mod(a,3);       d=d^3+4*a+mod(a,3);]]\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\u003eOf course there are as many strategies as programmers. There are also many helpful functions like\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003ecellfun arrayfun deal feval\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e. But sometimes usage of those functions in one line looks unclear and it doesn't make editing faster. Usage of\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003edealfun\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e could look like that:\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[funh=@(A)A^2+mod(A,3);   --\u003e   funh=@(A)A^3+4*A+mod(A,3);\\n[a,b,c,d]=dealfun(@funh,a,b,c,d);]]\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\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,b,c,d]=dealfun(@sum,ones(1),ones(2),ones(3),ones(4))\\na =  1\\nb =  2     2\\nc =  3     3     3\\nd =  4     4     4     4]]\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\u003eeasy change:\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,b,c,d]=dealfun(@numel,ones(1),ones(2),ones(3),ones(4))\\na =  1\\nb =  4\\nc =  9\\nd =  16]]\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":910,"title":"Fix y_correct : Hack","description":"The Test Suite has an error.\r\n\r\nFix the y_correct value.\r\n\r\n(See the tags for hints)","description_html":"\u003cp\u003eThe Test Suite has an error.\u003c/p\u003e\u003cp\u003eFix the y_correct value.\u003c/p\u003e\u003cp\u003e(See the tags for hints)\u003c/p\u003e","function_template":"function y=fix_y_correct\r\n y=2; \r\nend","test_suite":"%%\r\nx = 1;\r\ny_correct = 1;\r\nx=fix_y_correct;\r\ny_correct\r\nassert(isequal(y_correct,2),sprintf('Expected 2, y_correct=%i\\n',y_correct))\r\n","published":true,"deleted":false,"likes_count":1,"comments_count":0,"created_by":3097,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":32,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2012-08-14T02:48:14.000Z","updated_at":"2025-12-18T12:08:41.000Z","published_at":"2012-08-14T03:06:18.000Z","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\u003eThe Test Suite has an error.\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\u003eFix the y_correct value.\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\u003e(See the tags for hints)\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":266,"title":"Return the Nth Output from an Input Command","description":"*Description*\r\n\r\nGiven _F_, a cell array whose first element is a function handle and subsequent elements are arguments, return the _N_ th output of that function. When _N_ is a vector, return outputs in the same order as _N_.\r\n\r\n*Example*\r\n\r\n    F = {@min, [5 2 3 9 13 4 1 7 8]}\r\n    N = 2;\r\n    output = nth_output(F,N);\r\n    output = 7\r\n\r\n    F = {@min, [5 2 3 9 13 4 1 7 8]}\r\n    N = [2,1]\r\n    [output1 output2] = nth_output(F,N);\r\n    output1 = 7\r\n    output2 = 1","description_html":"\u003cp\u003e\u003cb\u003eDescription\u003c/b\u003e\u003c/p\u003e\u003cp\u003eGiven \u003ci\u003eF\u003c/i\u003e, a cell array whose first element is a function handle and subsequent elements are arguments, return the \u003ci\u003eN\u003c/i\u003e th output of that function. When \u003ci\u003eN\u003c/i\u003e is a vector, return outputs in the same order as \u003ci\u003eN\u003c/i\u003e.\u003c/p\u003e\u003cp\u003e\u003cb\u003eExample\u003c/b\u003e\u003c/p\u003e\u003cpre\u003e    F = {@min, [5 2 3 9 13 4 1 7 8]}\r\n    N = 2;\r\n    output = nth_output(F,N);\r\n    output = 7\u003c/pre\u003e\u003cpre\u003e    F = {@min, [5 2 3 9 13 4 1 7 8]}\r\n    N = [2,1]\r\n    [output1 output2] = nth_output(F,N);\r\n    output1 = 7\r\n    output2 = 1\u003c/pre\u003e","function_template":"function y = nth_output(F,N)\r\n  y = N;\r\nend","test_suite":"%%\r\nF = {@min, [5 2 3 9 13 4 1 7 8]};\r\nN = 2;\r\nassert(isequal(nth_output(F,N),7))\r\n\r\n%%\r\nF = {@min, [5 2 3 9 13 4 1 7 8]};\r\nN = 1;\r\nassert(isequal(nth_output(F,N),1))\r\n\r\n%%\r\nF = {@regexp, 'she sells sea shells by the seashore', 's'};\r\nN = [1 4 6];\r\n[a,b,c] = nth_output(F,N);\r\nassert(isequal(a,[1   5   9  11  15  20  29  32]))\r\nassert(isequal(b,num2cell('ssssssss')))\r\nassert(isequal(c,repmat(struct,1,8)))\r\n","published":true,"deleted":false,"likes_count":9,"comments_count":0,"created_by":134,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":68,"test_suite_updated_at":"2012-02-06T06:03:52.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2012-02-06T06:03:52.000Z","updated_at":"2025-10-11T15:29:29.000Z","published_at":"2012-02-06T06:04:27.000Z","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:rPr\u003e\u003cw:b/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eDescription\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\u003eGiven\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eF\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e, a cell array whose first element is a function handle and subsequent elements are arguments, return the\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:i/\u003e\u003c/w:rPr\u003e\u003cw:t\u003eN\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e th output of that function. 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