{"action":"opened","issue":{"url":"https://api.github.com/repos/python-control/python-control/issues/67","labels_url":"https://api.github.com/repos/python-control/python-control/issues/67/labels{/name}","comments_url":"https://api.github.com/repos/python-control/python-control/issues/67/comments","events_url":"https://api.github.com/repos/python-control/python-control/issues/67/events","html_url":"https://github.com/python-control/python-control/issues/67","id":91238797,"number":67,"title":"feedback function","user":{"login":"marcino239","id":6017403,"avatar_url":"https://avatars.githubusercontent.com/u/6017403?v=3","gravatar_id":"","url":"https://api.github.com/users/marcino239","html_url":"https://github.com/marcino239","followers_url":"https://api.github.com/users/marcino239/followers","following_url":"https://api.github.com/users/marcino239/following{/other_user}","gists_url":"https://api.github.com/users/marcino239/gists{/gist_id}","starred_url":"https://api.github.com/users/marcino239/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/marcino239/subscriptions","organizations_url":"https://api.github.com/users/marcino239/orgs","repos_url":"https://api.github.com/users/marcino239/repos","events_url":"https://api.github.com/users/marcino239/events{/privacy}","received_events_url":"https://api.github.com/users/marcino239/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-06-26T12:33:45Z","updated_at":"2015-06-26T12:33:45Z","closed_at":null,"body":"Hi,\r\n\r\nJust wanted to check feedback function as I couldn't reconcile its results with Matlab.  File xferfcn.py, in function feedback, line  638 is at the moment:\r\n\r\n        num = polymul(num1, den2)\r\n\r\nBut I think it should be:\r\n\r\n        num = polymul(num1, num2)\r\n\r\nLet me know if this is correct, and I'll send a pull request.\r\n\r\nThanks,\r\nmarcino239\r\n"}}