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4;\r\ny_correct = 2;\r\nassert(isequal(your_fcn_name(n),y_correct))\r\n\r\n%%\r\nn = 16;\r\ny_correct = 4;\r\nassert(isequal(your_fcn_name(n),y_correct))\r\n\r\n%%\r\nn = 285156;\r\ny_correct = 534;\r\nassert(isequal(your_fcn_name(n),y_correct))\r\n\r\n","published":true,"deleted":false,"likes_count":7,"comments_count":2,"created_by":21190,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":792,"test_suite_updated_at":"2014-01-14T22:26:31.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2013-12-20T14:22:47.000Z","updated_at":"2026-03-16T15:29:27.000Z","published_at":"2013-12-20T14:22:47.000Z","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\u003eDetermine the square root of the value the user has entered, n.\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":44957,"title":"Square root of 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7;\r\nassert(isequal(your_fcn_name(x),y_correct))\r\n\r\n\r\n","published":true,"deleted":false,"likes_count":0,"comments_count":0,"created_by":14762,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":151,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2019-08-27T17:06:06.000Z","updated_at":"2026-02-12T19:02:55.000Z","published_at":"2019-08-27T17:06:06.000Z","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\u003eSquare root of given number.\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":2977,"title":"square root","description":"Find the square root (y) of an input (x).","description_html":"\u003cp\u003eFind the square root (y) of an input (x).\u003c/p\u003e","function_template":"function y = square_root(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 49;\r\ny_correct = 7;\r\nassert(isequal(square_root(x),y_correct))\r\n%%\r\nx = 81;\r\ny_correct = 9;\r\nassert(isequal(square_root(x),y_correct))","published":true,"deleted":false,"likes_count":3,"comments_count":0,"created_by":33972,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":531,"test_suite_updated_at":"2015-02-07T04:48:57.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2015-02-07T04:39:38.000Z","updated_at":"2026-03-22T10:16:29.000Z","published_at":"2015-02-07T04:40:39.000Z","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\u003eFind the square root (y) of an input (x).\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":1891,"title":"High Precision Square Root (Inspired by Project Euler 80)","description":"Given a positive integer n which is not a perfect square, write a MATLAB script that will calculate the square root of n truncated to k places after the decimal point.  Your output should be a string.  For example, the output of string_sqrt(1000,10) should be '31.6227766016'  Notice that the square root of 1000 is (according to MATLAB) 31.62277660168379, so we want the integer part complete, as well as the first k numbers after the decimal point without rounding.\r\n\r\nSeveral of the values of k will be larger than the usual precision shown by MATLAB, so you'll need to be inventive.  Good luck.","description_html":"\u003cp\u003eGiven a positive integer n which is not a perfect square, write a MATLAB script that will calculate the square root of n truncated to k places after the decimal point.  Your output should be a string.  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Good luck.\u003c/p\u003e","function_template":"function y = string_sqrt(n,k)\r\n  y = sqrt(n);\r\nend","test_suite":"%%\r\nassert(strcmp(string_sqrt(1000,10),'31.6227766016'))\r\n%%\r\nassert(strcmp(string_sqrt(10,11),'3.16227766016'))\r\n%%\r\nassert(strcmp(string_sqrt(3,100),'1.7320508075688772935274463415058723669428052538103806280558069794519330169088000370811461867572485756'))\r\n%%\r\nassert(strcmp(string_sqrt(314159,314),'560.49888492306565872479934293941633491101288779142813321911971670725840486880541273457870660258696202335374555140881778649205224589390756076993240996126057385009263605818384161945745399159720436585888004381611637660905033452884843995010613320008027334007622507916692664539613518278405454926834945753785814159773889523'))\r\n%%\r\na=2:50;\r\na(sqrt(a)==floor(sqrt(a)))=[];\r\nna=numel(a);\r\nb=zeros(na,100);\r\nfor flag=1:na\r\n    temp=string_sqrt(a(flag),101);\r\n    t2=regexprep(temp,'\\.','')-'0';\r\n    b(flag,:)=t2(1:100);\r\nend\r\ny_correct=sum(sum(b))\r\nassert(isequal(19543,y_correct))\r\n%%\r\nassert(strcmp(string_sqrt(12345,1),'111.1'))","published":true,"deleted":false,"likes_count":3,"comments_count":0,"created_by":1615,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":32,"test_suite_updated_at":"2018-06-07T19:02:44.000Z","rescore_all_solutions":true,"group_id":1,"created_at":"2013-09-25T17:51:53.000Z","updated_at":"2026-01-11T21:55:54.000Z","published_at":"2013-09-25T17:51:53.000Z","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\u003eGiven a positive integer n which is not a perfect square, write a MATLAB script that will calculate the square root of n truncated to k places after the decimal point. Your output should be a string. For example, the output of string_sqrt(1000,10) should be '31.6227766016' Notice that the square root of 1000 is (according to MATLAB) 31.62277660168379, so we want the integer part complete, as well as the first k numbers after the decimal point without rounding.\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\u003eSeveral of the values of k will be larger than the usual precision shown by MATLAB, so you'll need to be inventive. 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534;\r\nassert(isequal(your_fcn_name(n),y_correct))\r\n\r\n","published":true,"deleted":false,"likes_count":7,"comments_count":2,"created_by":21190,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":792,"test_suite_updated_at":"2014-01-14T22:26:31.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2013-12-20T14:22:47.000Z","updated_at":"2026-03-16T15:29:27.000Z","published_at":"2013-12-20T14:22:47.000Z","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 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7;\r\nassert(isequal(your_fcn_name(x),y_correct))\r\n\r\n\r\n","published":true,"deleted":false,"likes_count":0,"comments_count":0,"created_by":14762,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":151,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2019-08-27T17:06:06.000Z","updated_at":"2026-02-12T19:02:55.000Z","published_at":"2019-08-27T17:06:06.000Z","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\u003eSquare root of given number.\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":2977,"title":"square root","description":"Find the square root (y) of an input (x).","description_html":"\u003cp\u003eFind the square root (y) of an input (x).\u003c/p\u003e","function_template":"function y = square_root(x)\r\n  y = x;\r\nend","test_suite":"%%\r\nx = 49;\r\ny_correct = 7;\r\nassert(isequal(square_root(x),y_correct))\r\n%%\r\nx = 81;\r\ny_correct = 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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\u003eFind the square root (y) of an input (x).\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":1891,"title":"High Precision Square Root (Inspired by 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Your output should be a string.  For example, the output of string_sqrt(1000,10) should be '31.6227766016'  Notice that the square root of 1000 is (according to MATLAB) 31.62277660168379, so we want the integer part complete, as well as the first k numbers after the decimal point without rounding.\r\n\r\nSeveral of the values of k will be larger than the usual precision shown by MATLAB, so you'll need to be inventive.  Good luck.","description_html":"\u003cp\u003eGiven a positive integer n which is not a perfect square, write a MATLAB script that will calculate the square root of n truncated to k places after the decimal point.  Your output should be a string.  For example, the output of string_sqrt(1000,10) should be '31.6227766016'  Notice that the square root of 1000 is (according to MATLAB) 31.62277660168379, so we want the integer part complete, as well as the first k numbers after the decimal point without rounding.\u003c/p\u003e\u003cp\u003eSeveral of the values of k will be larger than the usual precision shown by MATLAB, so you'll need to be inventive.  Good luck.\u003c/p\u003e","function_template":"function y = string_sqrt(n,k)\r\n  y = sqrt(n);\r\nend","test_suite":"%%\r\nassert(strcmp(string_sqrt(1000,10),'31.6227766016'))\r\n%%\r\nassert(strcmp(string_sqrt(10,11),'3.16227766016'))\r\n%%\r\nassert(strcmp(string_sqrt(3,100),'1.7320508075688772935274463415058723669428052538103806280558069794519330169088000370811461867572485756'))\r\n%%\r\nassert(strcmp(string_sqrt(314159,314),'560.49888492306565872479934293941633491101288779142813321911971670725840486880541273457870660258696202335374555140881778649205224589390756076993240996126057385009263605818384161945745399159720436585888004381611637660905033452884843995010613320008027334007622507916692664539613518278405454926834945753785814159773889523'))\r\n%%\r\na=2:50;\r\na(sqrt(a)==floor(sqrt(a)))=[];\r\nna=numel(a);\r\nb=zeros(na,100);\r\nfor flag=1:na\r\n    temp=string_sqrt(a(flag),101);\r\n    t2=regexprep(temp,'\\.','')-'0';\r\n    b(flag,:)=t2(1:100);\r\nend\r\ny_correct=sum(sum(b))\r\nassert(isequal(19543,y_correct))\r\n%%\r\nassert(strcmp(string_sqrt(12345,1),'111.1'))","published":true,"deleted":false,"likes_count":3,"comments_count":0,"created_by":1615,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":32,"test_suite_updated_at":"2018-06-07T19:02:44.000Z","rescore_all_solutions":true,"group_id":1,"created_at":"2013-09-25T17:51:53.000Z","updated_at":"2026-01-11T21:55:54.000Z","published_at":"2013-09-25T17:51:53.000Z","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\u003eGiven a positive integer n which is not a perfect square, write a MATLAB script that will calculate the square root of n truncated to k places after the decimal point. Your output should be a string. For example, the output of string_sqrt(1000,10) should be '31.6227766016' Notice that the square root of 1000 is (according to MATLAB) 31.62277660168379, so we want the integer part complete, as well as the first k numbers after the decimal point without rounding.\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\u003eSeveral of the values of k will be larger than the usual precision shown by MATLAB, so you'll need to be inventive. 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