{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-05-26T00:16:20.000Z","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":"2026-05-26T00:00:00.000Z","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":1860,"title":"Remove TeX from string","description":"Matlab’s TeX support in figure windows is great for displaying information in a visually appealing way. However, many of the TeX elements just get in the way when displaying a label string in the command window and lead to lots of additional gibberish if you want to create a valid variable name from the TeX string using genvarname.\r\n\r\nGiven the TeX string as an input, return a string that contains only the plain text of what would be displayed in a figure window by title, xlabel, etc.\r\n\r\nRetain special characters, e.g., ‘\\beta’ becomes ‘beta’.\r\n\r\nCell array inputs should return multi-line strings.","description_html":"\u003cp\u003eMatlab’s TeX support in figure windows is great for displaying information in a visually appealing way. However, many of the TeX elements just get in the way when displaying a label string in the command window and lead to lots of additional gibberish if you want to create a valid variable name from the TeX string using genvarname.\u003c/p\u003e\u003cp\u003eGiven the TeX string as an input, return a string that contains only the plain text of what would be displayed in a figure window by title, xlabel, etc.\u003c/p\u003e\u003cp\u003eRetain special characters, e.g., ‘\\beta’ becomes ‘beta’.\u003c/p\u003e\u003cp\u003eCell array inputs should return multi-line strings.\u003c/p\u003e","function_template":"function txt = tex2txt(texStr)\r\n  txt = texStr;\r\nend","test_suite":"%%\r\ntexStr = '\\beta';\r\ntxt    = 'beta';\r\nassert(isequal(tex2txt(texStr),txt))\r\n\r\n\r\n%%\r\ntexStr = ['\\fontsize{16}black {\\color{magenta}magenta '...\r\n    '\\color[rgb]{0 .5 .5}teal \\color{red}red} black again'];\r\ntxt    = 'black magenta teal red black again';\r\nassert(isequal(tex2txt(texStr),txt))\r\n\r\n\r\n%%\r\ntexStr = {'We need to work with cells, too'\r\n          '(for {\\bfmultiline} labels) and'\r\n          'return strings with newline characters.'};\r\ntxt    = sprintf(['We need to work with cells, too\\n' ...\r\n          '(for multiline labels) and\\n' ...\r\n          'return strings with newline characters.']);\r\nassert(isequal(tex2txt(texStr),txt))\r\n\r\n\r\n%%\r\ntexStr = '\\slRemove {\\bfall} \\itof \\rmthese.';\r\ntxt    = 'Remove all of these.';\r\nassert(isequal(tex2txt(texStr),txt))\r\n\r\n\r\n%%\r\ntxt    = 'variable_i^2/pi';\r\ntexStr = texlabel(txt);\r\nassert(isequal(tex2txt(texStr),txt))","published":true,"deleted":false,"likes_count":0,"comments_count":0,"created_by":10139,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":14,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2013-09-06T08:41:30.000Z","updated_at":"2026-05-27T04:40:08.000Z","published_at":"2013-09-06T08:41:30.000Z","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\u003eMatlab’s TeX support in figure windows is great for displaying information in a visually appealing way. However, many of the TeX elements just get in the way when displaying a label string in the command window and lead to lots of additional gibberish if you want to create a valid variable name from the TeX string using genvarname.\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\u003eGiven the TeX string as an input, return a string that contains only the plain text of what would be displayed in a figure window by title, xlabel, etc.\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\u003eRetain special characters, e.g., ‘\\\\beta’ becomes ‘beta’.\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\u003eCell array inputs should return multi-line strings.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"problem_search":{"problems":[{"id":1860,"title":"Remove TeX from string","description":"Matlab’s TeX support in figure windows is great for displaying information in a visually appealing way. However, many of the TeX elements just get in the way when displaying a label string in the command window and lead to lots of additional gibberish if you want to create a valid variable name from the TeX string using genvarname.\r\n\r\nGiven the TeX string as an input, return a string that contains only the plain text of what would be displayed in a figure window by title, xlabel, etc.\r\n\r\nRetain special characters, e.g., ‘\\beta’ becomes ‘beta’.\r\n\r\nCell array inputs should return multi-line strings.","description_html":"\u003cp\u003eMatlab’s TeX support in figure windows is great for displaying information in a visually appealing way. However, many of the TeX elements just get in the way when displaying a label string in the command window and lead to lots of additional gibberish if you want to create a valid variable name from the TeX string using genvarname.\u003c/p\u003e\u003cp\u003eGiven the TeX string as an input, return a string that contains only the plain text of what would be displayed in a figure window by title, xlabel, etc.\u003c/p\u003e\u003cp\u003eRetain special characters, e.g., ‘\\beta’ becomes ‘beta’.\u003c/p\u003e\u003cp\u003eCell array inputs should return multi-line strings.\u003c/p\u003e","function_template":"function txt = tex2txt(texStr)\r\n  txt = texStr;\r\nend","test_suite":"%%\r\ntexStr = '\\beta';\r\ntxt    = 'beta';\r\nassert(isequal(tex2txt(texStr),txt))\r\n\r\n\r\n%%\r\ntexStr = ['\\fontsize{16}black {\\color{magenta}magenta '...\r\n    '\\color[rgb]{0 .5 .5}teal \\color{red}red} black again'];\r\ntxt    = 'black magenta teal red black again';\r\nassert(isequal(tex2txt(texStr),txt))\r\n\r\n\r\n%%\r\ntexStr = {'We need to work with cells, too'\r\n          '(for {\\bfmultiline} labels) and'\r\n          'return strings with newline characters.'};\r\ntxt    = sprintf(['We need to work with cells, too\\n' ...\r\n          '(for multiline labels) and\\n' ...\r\n          'return strings with newline characters.']);\r\nassert(isequal(tex2txt(texStr),txt))\r\n\r\n\r\n%%\r\ntexStr = '\\slRemove {\\bfall} \\itof \\rmthese.';\r\ntxt    = 'Remove all of these.';\r\nassert(isequal(tex2txt(texStr),txt))\r\n\r\n\r\n%%\r\ntxt    = 'variable_i^2/pi';\r\ntexStr = texlabel(txt);\r\nassert(isequal(tex2txt(texStr),txt))","published":true,"deleted":false,"likes_count":0,"comments_count":0,"created_by":10139,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":14,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2013-09-06T08:41:30.000Z","updated_at":"2026-05-27T04:40:08.000Z","published_at":"2013-09-06T08:41:30.000Z","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\u003eMatlab’s TeX support in figure windows is great for displaying information in a visually appealing way. However, many of the TeX elements just get in the way when displaying a label string in the command window and lead to lots of additional gibberish if you want to create a valid variable name from the TeX string using genvarname.\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\u003eGiven the TeX string as an input, return a string that contains only the plain text of what would be displayed in a figure window by title, xlabel, etc.\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\u003eRetain special characters, e.g., ‘\\\\beta’ becomes ‘beta’.\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\u003eCell array inputs should return multi-line strings.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"}],"errors":[],"facets":[[],[{"value":"medium","count":1,"selected":false}]],"term":"tag:\"tex\"","page":1,"per_page":50,"sort":"map(difficulty_value,0,0,999) asc"}}