{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-06-05T00:10:21.000Z","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":"2026-06-05T00:00:00.000Z","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":2530,"title":"Powers Of","description":"Fill the vector with powers of 2, so that vector(1) is 2^1, vector(2) is 2^2, etc. Stop with vector(10).  Complete the function using a *for* loop.","description_html":"\u003cp\u003eFill the vector with powers of 2, so that vector(1) is 2^1, vector(2) is 2^2, etc. Stop with vector(10).  Complete the function using a \u003cb\u003efor\u003c/b\u003e loop.\u003c/p\u003e","function_template":"function vector = PowersOf(vector)\r\n  for ?\r\n    ?\r\n  end\r\nend","test_suite":"%%\r\nvector1 = [0 0 0 0 0 0 0 0 0 0];\r\nvector1_correct = [2 4 8 16 32 64 128 256 512 1024];\r\ncode = textread('PowersOf.m', '%s');\r\nassert(isequal(PowersOf(vector1), vector1_correct) \u0026\u0026 ...\r\n       strcmp(code(5), 'for') \u0026\u0026 ...\r\n       strcmp(code(end-7), 'end') \u0026\u0026 ...\r\n       strcmp(code(end-6), 'end'));","published":true,"deleted":false,"likes_count":3,"comments_count":1,"created_by":24594,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":110,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2014-08-26T12:47:32.000Z","updated_at":"2026-05-29T09:20:28.000Z","published_at":"2014-08-26T13:56:12.000Z","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\u003eFill the vector with powers of 2, so that vector(1) is 2^1, vector(2) is 2^2, etc. Stop with vector(10). 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Complete the function using a *for* loop.","description_html":"\u003cp\u003eFill the vector with powers of 2, so that vector(1) is 2^1, vector(2) is 2^2, etc. Stop with vector(10).  Complete the function using a \u003cb\u003efor\u003c/b\u003e loop.\u003c/p\u003e","function_template":"function vector = PowersOf(vector)\r\n  for ?\r\n    ?\r\n  end\r\nend","test_suite":"%%\r\nvector1 = [0 0 0 0 0 0 0 0 0 0];\r\nvector1_correct = [2 4 8 16 32 64 128 256 512 1024];\r\ncode = textread('PowersOf.m', '%s');\r\nassert(isequal(PowersOf(vector1), vector1_correct) \u0026\u0026 ...\r\n       strcmp(code(5), 'for') \u0026\u0026 ...\r\n       strcmp(code(end-7), 'end') \u0026\u0026 ...\r\n       strcmp(code(end-6), 'end'));","published":true,"deleted":false,"likes_count":3,"comments_count":1,"created_by":24594,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":110,"test_suite_updated_at":null,"rescore_all_solutions":false,"group_id":1,"created_at":"2014-08-26T12:47:32.000Z","updated_at":"2026-05-29T09:20:28.000Z","published_at":"2014-08-26T13:56:12.000Z","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\u003eFill the vector with powers of 2, so that vector(1) is 2^1, vector(2) is 2^2, etc. Stop with vector(10). 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