{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-04-06T14:01:22.000Z","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":"2026-04-06T00:00:00.000Z","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\"}]}"}],"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\\\" 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